US1840807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic control mechanism
Assignee: F B M GEAR SYNDICATE Ltd
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Filing: 1928-05-11
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Granted: 1932-01-12
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Expires: 1948-05-11
Abstract
No abstract record available.
Inventors
- 👤 Brown Westgarth Stanho Forster
- 👤 Maina Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:10
CPC Classifications
F; F16; F16H; F16H63/00; F16H63/02; F16H63/30; F16H63/3003; F16H3/00; F16H3/44; F16H3/62; F16H3/66; F16H3/663; F16H59/00; F16H59/02; F16H59/04; F16H59/045; F16H61/00; F16H61/02; F16H61/0262; F16H2716/00; F16H2716/04
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) | 1935-01-11 | 1935-07-13 | 1936-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-01-11 | 1939-07-13 | 1940-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-01-11 | 1943-07-13 | 1944-01-12 | $7700.00 | Window Closed / Lapsed |