US2670692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumping system
Assignee: Sunoco Inc
•
Filing: 1949-12-20
•
Granted: 1954-03-02
•
Expires: 1969-12-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward J Grace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:40
CPC Classifications
F; F16; F16K; F16K13/00; F16K13/08; F16K13/10; F04; F04B; F04B53/00; F04B53/10; F04B53/1077; Y; Y10; Y10T; Y10T137/00; Y10T137/4456; Y10T137/4643
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1107887A
Cited
US1630943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-01 | 1957-08-31 | 1958-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-01 | 1961-08-31 | 1962-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-01 | 1965-08-31 | 1966-03-02 | $7700.00 | Window Closed / Lapsed |