US3496872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary motor driven pump
Assignee: Trico Products Corp
•
Filing: 1968-05-31
•
Granted: 1970-02-24
•
Expires: 1988-05-31
Abstract
No abstract record available.
Inventors
- 👤 William C Riester
- 👤 Bronislaus S Graczyk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:54
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/02; B; B60; B60S; B60S1/00; B60S1/02; B60S1/46; B60S1/48; F04B49/00; F04B49/12; F04B49/121; F04B53/00; F04B53/10; F04B53/109; F04B53/1092
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1905284A
Cited
US2432798A
Cited
US2367545A
Cited
US2895424A
Cited
US2980032A
Cited
DE1184447B
Cited
US3171154A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |