US3171328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure fluid cylinder
Assignee: W E HENUELIS CO Inc
•
Filing: 1961-05-03
•
Granted: 1965-03-02
•
Expires: 1981-05-03
Abstract
No abstract record available.
Inventors
- 👤 William E Hennells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:10
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/20; F15B15/22; F15B15/223; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7927; Y10T137/8593; Y10T137/87265; Y10T137/87555
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1443200A
Cited
US1861742A
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US2262432A
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US2596779A
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US2878896A
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US2965354A
Cited
US2897785A
Cited
US2985358A
Cited
US3009476A
Cited
US3027877A
Cited
US2973744A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |