US3409135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Replaceable filter liquid pump
Assignee: ACF Industries Inc
•
Filing: 1966-11-04
•
Granted: 1968-11-05
•
Expires: 1986-11-04
Abstract
No abstract record available.
Inventors
- 👤 William A Bradley
- 👤 Russell F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:55
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/26; B01D35/02; F; F02; F02M; F02M1/00; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/438; F02M2700/4388; F02M2700/439
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US394390A
Cited
US780069A
Cited
US1932676A
Cited
US2394154A
Cited
US2576894A
Cited
US3150601A
Cited
US3236383A
Cited
US3254769A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |