Patent US3174594A successfully refreshed from Google Patents.
US3174594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Housing construction
Assignee: Lear Siegler Inc
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Filing: 1961-06-30
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Granted: 1965-03-23
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Expires: 1981-06-30
Abstract
No abstract record available.
Inventors
- 👤 Allan E Krausz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:15
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/08; F24H; F24H9/00; F24H9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A HOUSING TO ENCLOSE THE HEAT EXCHANGER OF A SPACE HEATER, WHICH HOUSING COMPRISES A RIGID FRAME, THE EDGES OF WHICH DEFINE A SPACE INCLUDING THAT OCCUPIED BY THE HEAT EXCHANGER, PANEL MEMBERS DISPOSED ADJACENT SAID FRAME, AND MEANS FASTENING SAID PANEL MEMBERS TO SAID FRAME WHILE PERMITTING LIMITED RELATIVE MOVEMENT THEREBETWEEN IN RESPONSE TO STRESSES SET UP IN SAID HOUSING, SAID FASTENING MEANS BEGING DISENGAGABLE BY SLIDING MOVEMENT OF SAID PANEL MEMBER RELATIVE TO SAID FRAME, EACH OF SAID FASTENING MEANS COMPRISING A SLOT AND A FASTENER ADAPTED TO ENGAGE SAID SLOT, ONE OF WHICH SLOT AND FASTENER IS PRO-
Claim 2
Dependent Claim
101 words
A HOUSING TO ENCLOSE THE HEAT EXCHANGER OF A SPACE HEATER, WHICH HOUSING COMPRISES A RIGID FRAME, THE EDGES OF WHICH DEFINE A SPACE INCLUDING THAT OCCUPIED BY THE HEAT EXCHANGER, PANEL MEMBERS DISPOSED ADJACENT SAID FRAME, AND MEANS FASTENING SAID PANEL MEMBERS TO SAID FRAME WHILE PERMITTING LIMITED RELATIVE MOVEMENT THEREBETWEEN IN RESPONSE TO STRESSES SET UP IN SAID HOUSING, SAID FASTENING MEANS BEGING DISENGAGABLE BY SLIDING MOVEMENT OF SAID PANEL MEMBER RELATIVE TO SAID FRAME, EACH OF SAID FASTENING MEANS COMPRISING A SLOT AND A FASTENER ADAPTED TO ENGAGE SAID SLOT, ONE OF WHICH SLOT AND FASTENER IS PRO-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |