US2768587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light metal pump
Assignee: EIDP Inc
•
Filing: 1952-01-02
•
Granted: 1956-10-30
•
Expires: 1972-01-02
Abstract
No abstract record available.
Inventors
- 👤 Ernest R Corneil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:12
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/16; F04B53/162; F04B53/164; F04B15/00; F04B15/04; F04B53/14; F04B7/00; F04B7/0042; F04B7/0053; F04B7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |