US2469215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective device
Assignee: General Electric Co
•
Filing: 1944-09-09
•
Granted: 1949-05-03
•
Expires: 1964-09-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Sidney R Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:51
CPC Classifications
H; H02; H02H; H02H7/00; H02H7/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1955571A
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US2056118A
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US2118437A
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US2296708A
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US2315320A
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US2277222A
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US2295320A
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US2323720A
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US2305436A
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US2418017A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-02 | 1952-11-01 | 1953-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-02 | 1956-11-01 | 1957-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-02 | 1960-11-01 | 1961-05-03 | $7700.00 | Window Closed / Lapsed |