US2203097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic control mechanism
Assignee: American Engineering Co Ltd
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Filing: 1937-04-15
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Granted: 1940-06-04
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Expires: 1957-04-15
Abstract
No abstract record available.
Inventors
- 👤 Robert C Lamond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:15
CPC Classifications
B; B63; B63H; B63H25/00; B63H25/06; B63H25/08; B63H25/14; B63H25/26; B63H25/28; F; F15; F15B; F15B20/00; F15B20/004
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) | 1943-06-04 | 1943-12-04 | 1944-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-06-04 | 1947-12-04 | 1948-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-06-04 | 1951-12-04 | 1952-06-04 | $7700.00 | Window Closed / Lapsed |