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USD271238S - Passive heat exchanger - Google Patents

Passive heat exchanger Download PDF

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Publication number
USD271238S
USD271238S US06/292,508 US29250881F USD271238S US D271238 S USD271238 S US D271238S US 29250881 F US29250881 F US 29250881F US D271238 S USD271238 S US D271238S
Authority
US
United States
Prior art keywords
heat exchanger
passive heat
passive
ornamental design
exchanger
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
US06/292,508
Inventor
Benjamin L. Valencia
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US06/292,508 priority Critical patent/USD271238S/en
Application granted granted Critical
Publication of USD271238S publication Critical patent/USD271238S/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

FIG. 1 is a perspective view of a heat exchanger showing my new design; and
FIG. 2 is a rear view thereof.

Claims (1)

  1. The ornamental design for a passive heat exchanger, as shown and described.
US06/292,508 1981-08-13 1981-08-13 Passive heat exchanger Expired - Lifetime USD271238S (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US06/292,508 USD271238S (en) 1981-08-13 1981-08-13 Passive heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/292,508 USD271238S (en) 1981-08-13 1981-08-13 Passive heat exchanger

Publications (1)

Publication Number Publication Date
USD271238S true USD271238S (en) 1983-11-01

Family

ID=64023691

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/292,508 Expired - Lifetime USD271238S (en) 1981-08-13 1981-08-13 Passive heat exchanger

Country Status (1)

Country Link
US (1) USD271238S (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD414257S (en) 1998-07-02 1999-09-21 Rosalio Estrada Flue pipe heat exchanger
USD417497S (en) 1998-02-18 1999-12-07 Wolf Steel Limited Gas appliance vent adapter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD264501S (en) 1979-10-22 1982-05-18 Beaton Darrow R Heat retrieval unit for installation into a flue duct

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD264501S (en) 1979-10-22 1982-05-18 Beaton Darrow R Heat retrieval unit for installation into a flue duct

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD417497S (en) 1998-02-18 1999-12-07 Wolf Steel Limited Gas appliance vent adapter
USD414257S (en) 1998-07-02 1999-09-21 Rosalio Estrada Flue pipe heat exchanger

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