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US2693149A
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Explosionproof motor-driven pump
Assignee: Individual
•
Filing: 1950-09-13
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Granted: 1954-11-02
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Expires: 1970-09-13
Abstract
No abstract record available.
Inventors
- 👤 Howard T White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:20
CPC Classifications
F; F04; F04D; F04D13/00; F04D13/02; F04D13/06; F04D13/0666
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1405959A
Cited
GB192618A
Cited
GB210273A
Cited
US2312848A
Cited
US2534520A
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US2537310A
Cited
US2469808A
Cited
US2481172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-01 | 1958-05-03 | 1958-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-01 | 1962-05-03 | 1962-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-01 | 1966-05-03 | 1966-11-02 | $7700.00 | Window Closed / Lapsed |