Patent US3098644A successfully refreshed from Google Patents.
US3098644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double acting spring device
Assignee: Individual
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Filing: 1962-05-01
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Granted: 1963-07-23
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Expires: 1982-05-01
Abstract
No abstract record available.
Inventors
- 👤 Stanley D Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:30
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/10; F16F9/14; F16F9/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A DEVICE FOR CONTROLLING THE RELATIVE APPROACH AND RECESSION OF TWO ELEMENTS WHICH COMPRISES A BODY DISPOSED BETWEEN SAID ELEMENTS AND HAVING A BORE THERETHROUGH AND CONTAINING A FLUID, EACH OF SAID ELEMENTS HAVING A MEMBER ATTACHED THERETO AND EXTENDING INTO AND ALONG SAID BORE TOWARD THE OTHER ELEMENT, SAID MEMBERS AT THEIR ADJACENT ENDS IN SAID MEMANOTHER, A PISTON SLIDABLY MOUNTED ON ONE OF SAID MEMBERS, AND SAID ONE OF SAID MEMBERS HAVING MEANS PREVENTING REMOVAL OF SAID PISTON FROM THE FREE END OF SAID ONE MEMBER, THE OTHER OF SAID MEMBERS CLEARING SAID ONE MEMBER AND SAID MEANS THEREON AND ENGAGING SAID PISTON TO SHIFT THE LATTER ALONG SAID ONE MEMBER IN A DIREC-
Claim 2
Independent Claim
116 words
A DEVICE FOR CONTROLLING THE RELATIVE APPROACH AND RECESSION OF TWO ELEMENTS WHICH COMPRISES A BODY DISPOSED BETWEEN SAID ELEMENTS AND HAVING A BORE THERETHROUGH AND CONTAINING A FLUID, EACH OF SAID ELEMENTS HAVING A MEMBER ATTACHED THERETO AND EXTENDING INTO AND ALONG SAID BORE TOWARD THE OTHER ELEMENT, SAID MEMBERS AT THEIR ADJACENT ENDS IN SAID MEMANOTHER, A PISTON SLIDABLY MOUNTED ON ONE OF SAID MEMBERS, AND SAID ONE OF SAID MEMBERS HAVING MEANS PREVENTING REMOVAL OF SAID PISTON FROM THE FREE END OF SAID ONE MEMBER, THE OTHER OF SAID MEMBERS CLEARING SAID ONE MEMBER AND SAID MEANS THEREON AND ENGAGING SAID PISTON TO SHIFT THE LATTER ALONG SAID ONE MEMBER IN A DIREC-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |