US3489097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible tube pump
Assignee: Individual
•
Filing: 1968-05-08
•
Granted: 1970-01-13
•
Expires: 1988-05-08
Abstract
No abstract record available.
Inventors
- 👤 William Gemeinhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:09
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/08; F04B43/082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1988624A
Cited
US2393838A
Cited
US2412397A
Cited
US2922379A
Cited
US3359910A
Cited
US3437050A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |