Patent US2788943A successfully refreshed from Google Patents.
US2788943A
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Compartment heating device
Assignee: OSCAR MARTIN Manufacturing CO
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Filing: 1954-01-18
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Granted: 1957-04-16
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Expires: 1974-01-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Oscar Fauser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:24
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/22; B60H1/2203; B60H1/2212; B60H1/00007; B60H1/00014
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1180691A
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US2163928A
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US2229277A
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US2422694A
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USRE23223E
Cited
US2632435A
Cited
US2602441A
Cited
US2635939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-15 | 1960-10-15 | 1961-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-15 | 1964-10-15 | 1965-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-15 | 1968-10-15 | 1969-04-16 | $7700.00 | Window Closed / Lapsed |