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US1992273A
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Assignee: Sangamo Electric Co
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Filing: 1932-06-09
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Granted: 1935-02-26
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Expires: 1952-06-09
Abstract
No abstract record available.
Inventors
- 👤 Roscoe H Wilmeth
- 👤 James A Keys
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:23
CPC Classifications
G; G04; G04C; G04C23/00; G04C23/14; G04C23/34; G04C23/347
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) | 1938-02-25 | 1938-08-27 | 1939-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-02-25 | 1942-08-27 | 1943-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-02-25 | 1946-08-27 | 1947-02-26 | $7700.00 | Window Closed / Lapsed |