US3028843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas water heater for trailers and houses
Assignee: HANDLING EQUIPMENT MANUFACTURING CORP
•
Filing: 1956-02-13
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Granted: 1962-04-10
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Expires: 1976-02-13
Abstract
No abstract record available.
Inventors
- 👤 Theodore E Carlson
- 👤 Max E Bowen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:33
CPC Classifications
F; F24; F24H; F24H1/00; F24H1/18; F24H1/20; F24H1/205; F24H1/206; Y; Y10; Y10S; Y10S122/00; Y10S122/03; Y10S122/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2059793A
Cited
US2064064A
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US878108A
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US1061911A
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FR627255A
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US1832332A
Cited
US1935632A
Cited
FR823641A
Cited
US2180212A
Cited
US2334398A
Cited
US2486780A
Cited
US2617407A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |