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USD289414S - Duct design calculator - Google Patents

Duct design calculator Download PDF

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Publication number
USD289414S
USD289414S US06/746,480 US74648085F USD289414S US D289414 S USD289414 S US D289414S US 74648085 F US74648085 F US 74648085F US D289414 S USD289414 S US D289414S
Authority
US
United States
Prior art keywords
duct design
design calculator
calculator
duct
design
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
US06/746,480
Inventor
David C. Peters
Derek P. Williams
William C. Chadwick
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.)
Carrier Corp
Original Assignee
Carrier 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 Carrier Corp filed Critical Carrier Corp
Priority to US06/746,480 priority Critical patent/USD289414S/en
Assigned to CARRIER CORPORATION A CORP OF DE reassignment CARRIER CORPORATION A CORP OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CHADWICK, WILLIAM C., PETERS, DAVID C., WILLIAMS, DEREK P.
Application granted granted Critical
Publication of USD289414S publication Critical patent/USD289414S/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

FIG. 1 is an isometric view of a duct design calculator showing our new design;
FIG. 2 is a top plan view;
FIG. 3 is a right end elevational view; and
FIG. 4 is a bottom plan view.

Claims (1)

  1. The ornamental design for a duct design calculator, as shown.
US06/746,480 1985-06-19 1985-06-19 Duct design calculator Expired - Lifetime USD289414S (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US06/746,480 USD289414S (en) 1985-06-19 1985-06-19 Duct design calculator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/746,480 USD289414S (en) 1985-06-19 1985-06-19 Duct design calculator

Publications (1)

Publication Number Publication Date
USD289414S true USD289414S (en) 1987-04-21

Family

ID=70157556

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/746,480 Expired - Lifetime USD289414S (en) 1985-06-19 1985-06-19 Duct design calculator

Country Status (1)

Country Link
US (1) USD289414S (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD330547S (en) 1990-12-14 1992-10-27 Richard Saunders International, Inc. Key pad
USD384366S (en) * 1996-08-08 1997-09-30 Myron Manufacturing Corporation Combination ruler and calculator
US6965848B2 (en) * 2000-12-12 2005-11-15 Dansk Industri Syndikat A/S Ducting system designer

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD256472S (en) 1978-03-06 1980-08-19 Texas Instruments Incorporated Case for an electronic calculator
USD271025S (en) 1982-07-19 1983-10-18 RJP Electronics Limited Combined ruler and electronic calculator
USD279381S (en) 1983-01-19 1985-06-25 Cal-Comp Electronice, Inc. Calculator ruler or similar article
USD283515S (en) 1983-05-20 1986-04-22 Li Robert S K Combined ruler and solar cell calculator
USD284199S (en) 1983-05-20 1986-06-10 Li Robert S K Combined ruler, clock and calculator
USD285094S (en) 1984-01-26 1986-08-12 RJP Electronics Limited Combined calculator ruler, and desk tray
USD286161S (en) 1983-10-12 1986-10-14 Far East United Electronics Limited Combined ruler, calculator and clock

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD256472S (en) 1978-03-06 1980-08-19 Texas Instruments Incorporated Case for an electronic calculator
USD271025S (en) 1982-07-19 1983-10-18 RJP Electronics Limited Combined ruler and electronic calculator
USD279381S (en) 1983-01-19 1985-06-25 Cal-Comp Electronice, Inc. Calculator ruler or similar article
USD283515S (en) 1983-05-20 1986-04-22 Li Robert S K Combined ruler and solar cell calculator
USD284199S (en) 1983-05-20 1986-06-10 Li Robert S K Combined ruler, clock and calculator
USD286161S (en) 1983-10-12 1986-10-14 Far East United Electronics Limited Combined ruler, calculator and clock
USD285094S (en) 1984-01-26 1986-08-12 RJP Electronics Limited Combined calculator ruler, and desk tray

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD330547S (en) 1990-12-14 1992-10-27 Richard Saunders International, Inc. Key pad
USD384366S (en) * 1996-08-08 1997-09-30 Myron Manufacturing Corporation Combination ruler and calculator
US6965848B2 (en) * 2000-12-12 2005-11-15 Dansk Industri Syndikat A/S Ducting system designer

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