US2956509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid dispensing pumps
Assignee: Drackett Co
•
Filing: 1958-09-09
•
Granted: 1960-10-18
•
Expires: 1978-09-09
Abstract
No abstract record available.
Inventors
- 👤 Rex C Cooprider
- 👤 Douglas F Corsette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:31
CPC Classifications
B; B05; B05B; B05B11/00; B05B11/01; B05B11/10; B05B11/1042; B05B11/1059; B05B11/106; F; F04; F04B; F04B53/00; F04B53/10; F04B53/12; F04B53/121; B05B11/0005; B05B11/0027; B05B11/0032; B05B11/1001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1486600A
Cited
US2024570A
Cited
US2119884A
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CH256416A
Cited
US2657834A
Cited
US2586687A
Cited
US2684182A
Cited
US2870943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-18 | 1964-04-18 | 1964-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-18 | 1968-04-18 | 1968-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-18 | 1972-04-18 | 1972-10-18 | $7700.00 | Window Closed / Lapsed |