Patent US2945451A successfully refreshed from Google Patents.
US2945451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic motor and/or pump
Assignee: Individual
•
Filing: 1953-04-20
•
Granted: 1960-07-19
•
Expires: 1973-04-20
Abstract
No abstract record available.
Inventors
- 👤 David E Griswold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:17
CPC Classifications
F; F03; F03C; F03C1/00; F03C1/02; F03C1/04; F03C1/0403; F03C1/0435; F03C1/0444; F01; F01B; F01B1/00; F01B1/06; F01B1/062; F01B1/0641; F01B1/0644; F01B1/0672; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US688860A
Cited
GB190125791A
Cited
US1128579A
Cited
US1277420A
Cited
US1359321A
Cited
GB327136A
Cited
US1920123A
Cited
US2215488A
Cited
US1979863A
Cited
US1984718A
Cited
US1982958A
Cited
US1995756A
Cited
US2120533A
Cited
US2257209A
Cited
US2246074A
Cited
US2381910A
Cited
US2427253A
Cited
GB577423A
Cited
US2383836A
Cited
GB608234A
Cited
US2676608A
Cited
US2420806A
Cited
US2545774A
Cited
US2612110A
Cited
US2620739A
Cited
US2683423A
Cited
US2703054A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |