US2832653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cylinder assembly
Assignee: Oil States Industries Inc
•
Filing: 1954-09-03
•
Granted: 1958-04-29
•
Expires: 1974-09-03
Abstract
No abstract record available.
Inventors
- 👤 Wilson John Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:10
CPC Classifications
F; F02; F02F; F02F7/00; F02F7/0043; F02F7/0046; F16; F16J; F16J10/00; F16J10/02; F16J10/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/4927; Y10T29/49272; Y10T29/53; Y10T29/5367; Y10T29/53796; Y10T29/5383; Y10T403/00; Y10T403/16; Y10T403/1633
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US961375A
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US1843463A
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US2081431A
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US2163885A
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US2223223A
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US2348293A
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US2584518A
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US2530246A
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US2678247A
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US2640434A
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US2650868A
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US2720691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |