US3303793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary gear pump
Assignee: Individual
•
Filing: 1966-08-05
•
Granted: 1967-02-14
•
Expires: 1986-08-05
Abstract
No abstract record available.
Inventors
- 👤 Morita Nobuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:33
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/08; F04C2/10; F04C2/102
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1964330A
Cited
US1700818A
Cited
US2458958A
Cited
US2657638A
Cited
US2915982A
Cited
US2925044A
Cited
US3106897A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |