US2462214A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary pump with easily removable rotor
Assignee: SPECIALTY BRASS Co Inc
•
Filing: 1945-06-07
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Granted: 1949-02-22
•
Expires: 1965-06-07
Abstract
No abstract record available.
Inventors
- 👤 Carl A Namur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:01
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/30; F04C2/34; F04C2/344; F04C2/3441
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US693470A
Cited
US1042951A
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US1437471A
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US1518716A
Cited
US1749058A
Cited
US2026739A
Cited
US2149435A
Cited
US2223212A
Cited
US2364599A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-22 | 1952-08-23 | 1953-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-22 | 1956-08-23 | 1957-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-22 | 1960-08-23 | 1961-02-22 | $7700.00 | Window Closed / Lapsed |