US3444969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrostatic power-load coupling
Assignee: Individual
•
Filing: 1967-04-24
•
Granted: 1969-05-20
•
Expires: 1987-04-24
Abstract
No abstract record available.
Inventors
- 👤 Emil Berklege
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:45
CPC Classifications
F; F16; F16D; F16D31/00; F16D31/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1688852A
Cited
US2174344A
Cited
US2377350A
Cited
US2435244A
Cited
US2502092A
Cited
US2564848A
Cited
US2498733A
Cited
US2718758A
Cited
US2974767A
Cited
US3258093A
Cited
US3156257A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |