US2693766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary pump of the resilient tube type
Assignee: Individual
•
Filing: 1950-12-12
•
Granted: 1954-11-09
•
Expires: 1970-12-12
Abstract
No abstract record available.
Inventors
- 👤 Seyler Leon Antoine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:59
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/12; F04B43/1253; F04B43/0009; F04B43/0054; F04B43/0072; F04B43/1276
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US314851A
Cited
US496559A
Cited
US513315A
Cited
US1998337A
Cited
FR851636A
Cited
US2314281A
Cited
US2403572A
Cited
FR954019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-08 | 1958-05-10 | 1958-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-08 | 1962-05-10 | 1962-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-08 | 1966-05-10 | 1966-11-09 | $7700.00 | Window Closed / Lapsed |