US2617856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-compensated plate current oscillator
Assignee: Motors Liquidation Co
•
Filing: 1946-10-16
•
Granted: 1952-11-11
•
Expires: 1966-10-16
Abstract
No abstract record available.
Inventors
- 👤 Wesley S Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:23
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/08; H03B5/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1898432A
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US2222221A
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US2281205A
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US2243524A
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US2255727A
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US2262149A
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US2293227A
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US2326344A
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US2337759A
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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) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |