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USD304499S - Folding stair unit - Google Patents

Folding stair unit Download PDF

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Publication number
USD304499S
USD304499S US07/194,572 US19457288F USD304499S US D304499 S USD304499 S US D304499S US 19457288 F US19457288 F US 19457288F US D304499 S USD304499 S US D304499S
Authority
US
United States
Prior art keywords
stair unit
folding stair
folding
unit
elevational view
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US07/194,572
Inventor
Orley D. Rogers
Kenneth E. Staten
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stageright Corp
Original Assignee
Stageright Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stageright Corp filed Critical Stageright Corp
Priority to US07/194,572 priority Critical patent/USD304499S/en
Assigned to STAGERIGHT CORPORATION, A CORP. OF MI reassignment STAGERIGHT CORPORATION, A CORP. OF MI ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ROGERS, ORLEY D., STATEN, KENNETH E.
Application granted granted Critical
Publication of USD304499S publication Critical patent/USD304499S/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

FIG. 1 is a left side elevational view of a folding stair unit showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a right side elevational view with the step element partially closed; and,
FIG. 8 is a right side elevational view with the step element fully closed to storage position.

Claims (1)

  1. The ornamental design for a folding stair unit, as shown.
US07/194,572 1988-05-12 1988-05-12 Folding stair unit Expired - Lifetime USD304499S (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US07/194,572 USD304499S (en) 1988-05-12 1988-05-12 Folding stair unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/194,572 USD304499S (en) 1988-05-12 1988-05-12 Folding stair unit

Publications (1)

Publication Number Publication Date
USD304499S true USD304499S (en) 1989-11-07

Family

ID=70221707

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/194,572 Expired - Lifetime USD304499S (en) 1988-05-12 1988-05-12 Folding stair unit

Country Status (1)

Country Link
US (1) USD304499S (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5325640A (en) 1991-08-09 1994-07-05 Sico Incorporated Folding stage system
US5615451A (en) 1994-01-10 1997-04-01 Sico Incorporated Roller assembly lift mechanism
US5660121A (en) 1995-02-24 1997-08-26 Sico Incorporated Folding framework and support legs
US5787647A (en) 1996-06-07 1998-08-04 Wenger Corporation Portable riser
US5848501A (en) 1992-07-31 1998-12-15 Wenger Corporation Modular portable system
USD411019S (en) * 1998-06-26 1999-06-15 Curtis Charles G Rolling stair
US6024026A (en) 1997-06-20 2000-02-15 Sico Incorporated Tri-height folding stage
US6070367A (en) 1997-08-01 2000-06-06 Sico Incorporated Folding stage
US6164017A (en) 1999-01-06 2000-12-26 Sico Incorporated Adjustable linkage
US6729075B2 (en) 2000-10-19 2004-05-04 Wenger Corporation Audience seating system
US20040211137A1 (en) * 2003-02-07 2004-10-28 Thiede Martin E. Modular floor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3207260A (en) 1965-09-21 Castagna trailer step assembly
US3747708A (en) 1971-11-18 1973-07-24 Wenger Corp Portable folding riser
US4006564A (en) 1976-01-21 1977-02-08 Harold Wiese Foldable hand rail and seating structure
US4276955A (en) 1978-05-30 1981-07-07 Tekron Licensing B.V. Multiple-purpose work unit
US4412403A (en) 1982-05-21 1983-11-01 Lefranc Christiane Telescoping grandstand arrangement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3207260A (en) 1965-09-21 Castagna trailer step assembly
US3747708A (en) 1971-11-18 1973-07-24 Wenger Corp Portable folding riser
US4006564A (en) 1976-01-21 1977-02-08 Harold Wiese Foldable hand rail and seating structure
US4276955A (en) 1978-05-30 1981-07-07 Tekron Licensing B.V. Multiple-purpose work unit
US4412403A (en) 1982-05-21 1983-11-01 Lefranc Christiane Telescoping grandstand arrangement

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5325640A (en) 1991-08-09 1994-07-05 Sico Incorporated Folding stage system
US5349789A (en) 1991-08-09 1994-09-27 Sico Incorporated Multi-level folding stage
US5848501A (en) 1992-07-31 1998-12-15 Wenger Corporation Modular portable system
US6106186A (en) 1992-07-31 2000-08-22 Wenger Corporation Modular portable stage system
US5615451A (en) 1994-01-10 1997-04-01 Sico Incorporated Roller assembly lift mechanism
US5660121A (en) 1995-02-24 1997-08-26 Sico Incorporated Folding framework and support legs
US5787647A (en) 1996-06-07 1998-08-04 Wenger Corporation Portable riser
US5901505A (en) 1996-06-07 1999-05-11 Wenger Corporation Portable riser
US6024026A (en) 1997-06-20 2000-02-15 Sico Incorporated Tri-height folding stage
US6070367A (en) 1997-08-01 2000-06-06 Sico Incorporated Folding stage
USD411019S (en) * 1998-06-26 1999-06-15 Curtis Charles G Rolling stair
US6164017A (en) 1999-01-06 2000-12-26 Sico Incorporated Adjustable linkage
US6729075B2 (en) 2000-10-19 2004-05-04 Wenger Corporation Audience seating system
US20040189065A1 (en) * 2000-10-19 2004-09-30 Wenger Corporation Audience seating system
US6922947B2 (en) 2000-10-19 2005-08-02 Wenger Corporation Audience seating system
US7107734B2 (en) 2000-10-19 2006-09-19 Wenger Corporation Audience seating system
US20040211137A1 (en) * 2003-02-07 2004-10-28 Thiede Martin E. Modular floor
US7874115B2 (en) 2003-02-07 2011-01-25 Wenger Corporation Modular floor

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