US3498231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gear pump with unitized sealing elements
Assignee: Colt Industries Operating Corp
•
Filing: 1968-04-26
•
Granted: 1970-03-03
•
Expires: 1988-04-26
Abstract
No abstract record available.
Inventors
- 👤 Jack G Sundberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:26
CPC Classifications
F; F04; F04C; F04C15/00; F04C15/0003; F04C15/0007; F04C15/0019
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2742862A
Cited
US2817297A
Cited
US2996999A
Cited
US3208393A
Cited
US3427985A
Cited
US3429270A
Cited
US3437048A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |