US3457841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure operated multiple piston work devices of the nonrotating piston type
Assignee: SAVAIR PRODUCTS CO
•
Filing: 1967-04-10
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Granted: 1969-07-29
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Expires: 1987-04-10
Abstract
No abstract record available.
Inventors
- 👤 William E Tregaskiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:22
CPC Classifications
F; F16; F16J; F16J10/00; F16J10/02; F15; F15B; F15B11/00; F15B11/02; F15B11/028; F15B11/036; F15B11/0365; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49249; Y10T29/49256; Y10T29/49826; Y10T29/49838
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2628872A
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US2632678A
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US2744719A
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US2956549A
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US2987046A
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US2985140A
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US3313215A
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US3149543A
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US3253519A
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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) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |