US3408943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal pumps for liquids
Assignee: Dowty Fuel Systems Ltd
•
Filing: 1966-08-22
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Granted: 1968-11-05
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Expires: 1986-08-22
Abstract
No abstract record available.
Inventors
- 👤 Rimmer Ronald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:15
CPC Classifications
F; F04; F04D; F04D15/00; F02; F02C; F02C9/00; F02C9/26; F02C9/30; F04D15/0005; F04D15/0022; F23; F23N; F23N1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2306742A
Cited
US2336010A
Cited
US2449002A
Cited
US2826147A
Cited
US3004494A
Cited
US3041848A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |