US4057892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of installing a water heater in a recreational vehicles
Assignee: AVM ACQUISITION Co A CORP OF
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Filing: 1976-08-02
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Granted: 1977-11-15
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Expires: 1996-08-02
Abstract
Abstract The water heater includes an open-ended, box-like case fabricated from sheet metal panels and adapted to be pulled through an opening in a vehicle wall after the wall has been erected. Thereafter, the margins of the panels may be bent outwardly by hand to form right angle mounting flanges adapted to lie in face-to-face relation with the wall.
Inventors
- 👤 Donald M. White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:41
CPC Classifications
B; B60; B60N; B60N3/00; B60N3/16; F; F24; F24H; F24H1/00; F24H1/06; F24H1/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49947; Y10T29/49963
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A method of installing a water heater having a boxlike case of rectangular cross-section, said case being made of sheet metal panels and having an open forward end, said method comprising the steps of inserting the forward end of said case forwardly through an opening in a wall and past the forward side of the wall, bending the forward margins of said panels outwardly to form flanges lying in face-to-face relation with the forward side of said wall, and securing said flanges to said wall.
Claim 2
Independent Claim
85 words
A method of installing a water heater having a boxlike case of rectangular cross-section, said case being made of sheet metal panels and having an open forward end, said method comprising the steps of inserting the forward end of said case forwardly through an opening in a wall and past the forward side of the wall, bending the forward margins of said panels outwardly to form flanges lying in face-to-face relation with the forward side of said wall, and securing said flanges to said wall.
References Cited (Backward Citations)
US723318A
Cited
US1702775A
Cited
US2549547A
Cited
US2567309A
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US2826755A
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US2930505A
Cited
US3186186A
Cited
US3289287A
Cited
US3404539A
Cited
US3570108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-11-14 | 1981-05-16 | 1981-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-14 | 1985-05-16 | 1985-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-14 | 1989-05-16 | 1989-11-15 | $7700.00 | Window Closed / Lapsed |