Patent US1632131A successfully refreshed from Google Patents.
US1632131A
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Assignee: Sperry Gyroscope Co Ltd
•
Filing: 1919-08-23
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Granted: 1927-06-14
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Expires: 1939-08-23
Abstract
No abstract record available.
Inventors
- 👤 Hall Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:22
CPC Classifications
H; H05; H05B; H05B31/00; H05B31/003; H05B31/0039; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18024
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) | 1930-06-13 | 1930-12-13 | 1931-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-06-13 | 1934-12-13 | 1935-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-06-13 | 1938-12-13 | 1939-06-14 | $7700.00 | Window Closed / Lapsed |