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US2885967A
Expired / Lapsed
US
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Spiral type pump means
Assignee: SANTA ANITA Manufacturing CORP
•
Filing: 1956-12-18
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Granted: 1959-05-12
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Expires: 1976-12-18
Abstract
No abstract record available.
Inventors
- 👤 William K Vogel
- 👤 Milton C Vogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:58
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/12; F04B43/1215
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1741070A
Cited
US2018998A
Cited
US2334148A
Cited
US2406485A
Cited
US2414355A
Cited
DE885657C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |