US2285968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power transmission
Assignee: Vickers Inc
•
Filing: 1940-09-30
•
Granted: 1942-06-09
•
Expires: 1960-09-30
Abstract
No abstract record available.
Inventors
- 👤 Ferris T Harrington
- 👤 Ralph L Tweedale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:32
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; F15B11/024; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/20507; F15B2211/20515; F15B2211/30; F15B2211/305; F15B2211/30525; F15B2211/31; F15B2211/3122; F15B2211/3133; F15B2211/315; F15B2211/3157; F15B2211/31576; F15B2211/32; F15B2211/321; F15B2211/324; F15B2211/327; F15B2211/35; F15B2211/60; F15B2211/63; F15B2211/6303; F15B2211/6336; F15B2211/70; F15B2211/75; F15B2211/77; F15B2211/7725
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) | 1945-06-08 | 1945-12-08 | 1946-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-06-08 | 1949-12-08 | 1950-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-06-08 | 1953-12-08 | 1954-06-09 | $7700.00 | Window Closed / Lapsed |