Patent US1803834A successfully refreshed from Google Patents.
US1803834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power transmission
Assignee: Sperry Gyroscope Co Inc
•
Filing: 1927-08-09
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Granted: 1931-05-05
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Expires: 1947-08-09
Abstract
No abstract record available.
Inventors
- 👤 Mortimer F Bates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:23
CPC Classifications
F; F16; F16H; F16H15/00; F16H15/02; F16H15/04; F16H15/40; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19042
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) | 1934-05-04 | 1934-11-03 | 1935-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-05-04 | 1938-11-03 | 1939-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-05-04 | 1942-11-03 | 1943-05-05 | $7700.00 | Window Closed / Lapsed |