US3371618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump
Assignee: Individual
•
Filing: 1966-02-18
•
Granted: 1968-03-05
•
Expires: 1986-02-18
Abstract
No abstract record available.
Inventors
- 👤 Chambers John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:08
CPC Classifications
F; F04; F04F; F04F5/00; F04F5/44; F04F5/46; F04F5/467
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US561160A
Cited
US571022A
Cited
US580762A
Cited
USRE19581E
Cited
US2172522A
Cited
US3123285A
Cited
US904276A
Cited
US1228608A
Cited
US1936246A
Cited
US2180259A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |