US1970133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Oilgear Co
•
Filing: 1931-03-18
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Granted: 1934-08-14
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Expires: 1951-03-18
Abstract
No abstract record available.
Inventors
- 👤 Ferris Walter
- 👤 Macomber Glen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:47
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/12; F04B1/20; F04B1/2014; F04B1/2035; F04B1/122; F04B1/124; F04B1/2042; F04B1/2057; F04B1/26; F04B1/30; F04B1/32; F04B1/324
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) | 1937-08-13 | 1938-02-12 | 1938-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-08-13 | 1942-02-12 | 1942-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-08-13 | 1946-02-12 | 1946-08-14 | $7700.00 | Window Closed / Lapsed |