US2974767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined pump and torque transmitting coupling
Assignee: Individual
•
Filing: 1958-05-26
•
Granted: 1961-03-14
•
Expires: 1978-05-26
Abstract
No abstract record available.
Inventors
- 👤 Bertram A Fulton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:52
CPC Classifications
F; F16; F16D; F16D31/00; F16D31/06; D; D06; D06F; D06F39/00; D06F39/08; D06F39/083; D06F39/085; F16D13/00; F16D13/76
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2371228A
Cited
US2371227A
Cited
GB251900A
Cited
GB539241A
Cited
US2387230A
Cited
US2636443A
Cited
FR976152A
Cited
US2648287A
Cited
US2789511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-13 | 1964-09-12 | 1965-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-13 | 1968-09-12 | 1969-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-13 | 1972-09-12 | 1973-03-14 | $7700.00 | Window Closed / Lapsed |