US2992619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pumps, motors and methods therefor
Assignee: Individual
•
Filing: 1950-08-05
•
Granted: 1961-07-18
•
Expires: 1970-08-05
Abstract
No abstract record available.
Inventors
- 👤 William C Nilges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:39
CPC Classifications
F; F01; F01B; F01B3/00; F01B3/0032; F01B3/0044; F01B3/0052; F01B1/00; F01B1/06; F01B1/0641; F01B1/0648; F01B3/04; F02; F02B; F02B75/00; F02B75/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US959856A
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US1263180A
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GB191021188A
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US1087160A
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US1697854A
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US1922951A
Cited
US1881786A
Cited
US2061144A
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US2217796A
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US2465954A
Cited
US2496915A
Cited
US2649741A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |