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US1648700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal electric generator
Assignee: General Electric Co
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Filing: 1925-03-31
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Granted: 1927-11-08
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Expires: 1945-03-31
Abstract
No abstract record available.
Inventors
- 👤 Dewey T Simonds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:39
CPC Classifications
H; H10; H10N; H10N10/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1930-11-07 | 1931-05-09 | 1931-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-11-07 | 1935-05-09 | 1935-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-11-07 | 1939-05-09 | 1939-11-08 | $7700.00 | Window Closed / Lapsed |