US2639694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gear motor or pump
Assignee: Individual
•
Filing: 1949-04-12
•
Granted: 1953-05-26
•
Expires: 1969-04-12
Abstract
No abstract record available.
Inventors
- 👤 James P Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:29
CPC Classifications
F; F03; F03C; F03C2/00; F03C2/08; F04; F04C; F04C2/00; F04C2/08; F04C2/12; F04C2/14; F04C2/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US345969A
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US1634023A
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US1105312A
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US1148809A
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US1129090A
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FR622180A
Cited
US1673262A
Cited
FR672256A
Cited
US1891793A
Cited
US2105259A
Cited
US2147777A
Cited
US2211154A
Cited
US2146395A
Cited
US2252661A
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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) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |