US2741990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor driven pumps
Assignee: Individual
•
Filing: 1952-11-26
•
Granted: 1956-04-17
•
Expires: 1972-11-26
Abstract
No abstract record available.
Inventors
- 👤 Howard T White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:14
CPC Classifications
F; F04; F04D; F04D13/00; F04D13/02; F04D13/06; F04D13/0606; F04D13/0613
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1377326A
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US1973070A
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AT157495B
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US2325930A
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US2277333A
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US2301063A
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US2400192A
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US2568548A
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US2517233A
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US2463936A
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US2485408A
Cited
US2669187A
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US2687695A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |