US2646962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid motor for driving rotary tools
Assignee: ENGINEERING DEV Co Inc
•
Filing: 1947-02-19
•
Granted: 1953-07-28
•
Expires: 1967-02-19
Abstract
No abstract record available.
Inventors
- 👤 George P Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:45
CPC Classifications
E; E21; E21B; E21B4/00; E21B4/02; Y; Y10; Y10S; Y10S415/00; Y10S415/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1770488A
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US2044349A
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US2268543A
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US2197499A
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US2348047A
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US2355342A
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US2427226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |