Patent US3429233A successfully refreshed from Google Patents.
US3429233A
Expired / Lapsed
US
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Resistance stroke control cylinder
Assignee: COMPRESSED AIR SERVICE CO
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Filing: 1966-10-06
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Granted: 1969-02-25
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Expires: 1986-10-06
Abstract
No abstract record available.
Inventors
- 👤 Lee A Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:59
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/20; F15B15/26; F15B15/262
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US435139A
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US1578997A
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US2259815A
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US2515712A
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US2845902A
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US2988058A
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GB898260A
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US3161400A
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US3272087A
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US3320862A
Cited
US3353455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |