Patent US2961966A successfully refreshed from Google Patents.
US2961966A
Expired / Lapsed
US
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Fluid-actuated double acting pump apparatus
Assignee: US Industries Inc
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Filing: 1956-12-27
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Granted: 1960-11-29
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Expires: 1976-12-27
Abstract
No abstract record available.
Inventors
- 👤 Jack H Zillman
- 👤 Roy W Wagoner
- 👤 Glynn H Williams
- 👤 Frank W Sharp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:50
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/08; F04B43/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1568091A
Cited
US1893776A
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US2606500A
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US2626569A
Cited
US2699729A
Cited
US2762004A
Cited
US2775729A
Cited
US2768500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |