US2663263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary pump
Assignee: SUBMERGED COMB Co OF AMER
•
Filing: 1949-08-19
•
Granted: 1953-12-22
•
Expires: 1969-08-19
Abstract
No abstract record available.
Inventors
- 👤 Mayus Eugene
- 👤 See Walter George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:33
CPC Classifications
F; F04; F04C; F04C5/00; F04C2/00; F04C2/30; F04C2/40; F04C2/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1445721A
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US945953A
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US1043936A
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US2007954A
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US2117011A
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US2052474A
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US2455194A
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US2460952A
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US2542268A
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US2542240A
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US2499163A
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US2466440A
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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) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |