Patent US3422766A successfully refreshed from Google Patents.
US3422766A
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Pump assemblies
Assignee: English Electric Co Ltd
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Filing: 1966-03-29
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Granted: 1969-01-21
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Expires: 1986-03-29
Abstract
No abstract record available.
Inventors
- 👤 George William Conibeer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:24
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/60; F04D29/62; F04D29/628; F04D7/00; F04D7/02; F04D7/06; F04D7/065; G; G21; G21C; G21C1/00; G21C1/02; G21C1/03; G21C15/00; G21C15/24; G21C15/243; G21C15/247; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S415/00; Y10S415/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1042506A
Cited
FR513309A
Cited
US1387660A
Cited
US1369527A
Cited
GB257111A
Cited
US1683949A
Cited
US2204169A
Cited
US2693760A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |