US2509731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Governing apparatus
Assignee: General Electric Co
•
Filing: 1946-02-01
•
Granted: 1950-05-30
•
Expires: 1966-02-01
Abstract
No abstract record available.
Inventors
- 👤 Martin A Edwards
- 👤 Carl B Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:59
CPC Classifications
B; B60; B60L; B60L50/00; B60L50/10; B60L50/11; B60L2200/00; B60L2200/26; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/70; Y02T10/7072
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1585351A
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US2152025A
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US2178355A
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US2175681A
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US2210675A
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US2256294A
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US2424121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-29 | 1953-11-28 | 1954-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-29 | 1957-11-28 | 1958-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-29 | 1961-11-28 | 1962-05-30 | $7700.00 | Window Closed / Lapsed |