US2826151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible fluid seal pump
Assignee: Individual
•
Filing: 1954-12-16
•
Granted: 1958-03-11
•
Expires: 1974-12-16
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Mccray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:28
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/08; F04C2/10; F04C2/107; F04C2/1071; F04C2/1073; F04C2/1075
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2028407A
Cited
GB484479A
Cited
US2258371A
Cited
US2404890A
Cited
US2621605A
Cited
US2700936A
Cited
US2695694A
Cited
US2695565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |