US2525265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glandless pump
Assignee: Robbins and Myers Inc
•
Filing: 1946-06-18
•
Granted: 1950-10-10
•
Expires: 1966-06-18
Abstract
No abstract record available.
Inventors
- 👤 Moineau Adele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:13
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/08; F04C2/10; F04C2/107; F04C2/1071; F04C2/1078; F04C11/00; F04C11/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1892217A
Cited
US2028407A
Cited
GB425447A
Cited
GB436843A
Cited
US2290137A
Cited
US2269189A
Cited
US2329386A
Cited
US2399008A
Cited
US2381695A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |