US2507119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heater control
Assignee: Stewart Warner Corp
•
Filing: 1946-03-14
•
Granted: 1950-05-09
•
Expires: 1966-03-14
Abstract
No abstract record available.
Inventors
- 👤 Ross D Randall
- 👤 Frank A Ryder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:23
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/22; B60H1/2203; B60H1/2206; B64; B64D; B64D13/00; B64D13/06; B64D13/08; F; F23; F23N; F23N5/00; F23N5/02; F23N5/06; F23N5/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US423965A
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US1848668A
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US1441549A
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US1583238A
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US1943267A
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US2006658A
Cited
US1978709A
Cited
US1981679A
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GB417464A
Cited
US2285913A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-08 | 1953-11-07 | 1954-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-08 | 1957-11-07 | 1958-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-08 | 1961-11-07 | 1962-05-09 | $7700.00 | Window Closed / Lapsed |