Patent US3532441A successfully refreshed from Google Patents.
US3532441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumps with vapor handling element
Assignee: Colt Industries Operating Corp
•
Filing: 1968-09-04
•
Granted: 1970-10-06
•
Expires: 1988-09-04
Abstract
No abstract record available.
Inventors
- 👤 John J Schofield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:46
CPC Classifications
F; F02; F02M; F02M37/00; F02M37/20; F04; F04D; F04D31/00; F04D9/00; F04D9/001
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3128822A
Cited
GB154082A
Cited
US1430303A
Cited
US2272906A
Cited
US2737961A
Cited
FR1143499A
Cited
US2826147A
Cited
US2980028A
Cited
US3105441A
Cited
US3217655A
Cited
US3309995A
Cited
US3387644A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |