US3417672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary hydraulic cylinder
Assignee: SP Manufacturing CORP
•
Filing: 1967-06-28
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Granted: 1968-12-24
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Expires: 1987-06-28
Abstract
No abstract record available.
Inventors
- 👤 Merritt B Sampson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:47
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/12; F16L27/125; B; B23; B23B; B23B31/00; B23B31/02; B23B31/24; B23B31/30; B23B31/302; F16L39/00; F16L39/04; Y; Y10; Y10T; Y10T279/00; Y10T279/12; Y10T279/1208
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA640706A
Cited
US1905234A
Cited
US1906715A
Cited
GB513390A
Cited
FR875980A
Cited
GB639293A
Cited
US2835227A
Cited
US2812186A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |