US2793836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heater construction
Assignee: Motors Liquidation Co
•
Filing: 1953-12-28
•
Granted: 1957-05-28
•
Expires: 1973-12-28
Abstract
No abstract record available.
Inventors
- 👤 Holmes John Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:00
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/02; B60H1/14; B60H1/18; Y; Y10; Y10S; Y10S165/00; Y10S165/001; Y10S165/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE110394C
Cited
US718851A
Cited
US1571068A
Cited
US1745492A
Cited
US1936698A
Cited
US2469028A
Cited
US2412334A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-27 | 1960-11-26 | 1961-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-27 | 1964-11-26 | 1965-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-27 | 1968-11-26 | 1969-05-28 | $7700.00 | Window Closed / Lapsed |