US2389169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic motor
Assignee: French Oil Mill Machinery Co
•
Filing: 1942-05-20
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Granted: 1945-11-20
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Expires: 1962-05-20
Abstract
No abstract record available.
Inventors
- 👤 Thomas F Stacy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:33
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/76; B29C45/82; Y; Y10; Y10S; Y10S425/00; Y10S425/228
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) | 1948-11-19 | 1949-05-21 | 1949-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-11-19 | 1953-05-21 | 1953-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-11-19 | 1957-05-21 | 1957-11-20 | $7700.00 | Window Closed / Lapsed |