Patent US4060728A successfully refreshed from Google Patents.
US3090218A
Expired / Lapsed
US
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Locked-safe valve
Assignee: Standard Oil Co
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Filing: 1959-11-27
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Granted: 1963-05-21
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Expires: 1979-11-27
Abstract
No abstract record available.
Inventors
- 👤 Harold A Birkness
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:01
CPC Classifications
F; F16; F16K; F16K35/00; F16K35/06; Y; Y10; Y10T; Y10T137/00; Y10T137/7069; Y10T292/00; Y10T292/54; Y10T292/546; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5615; Y10T70/5619; Y10T70/5633
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
95 words
AN INTERLOCK MECHANISM FOR MAINTAINING IN A STATIC POSITION A RECIPROCABLE MEMBER WHICH MECHANISM COMPRISES AN ELONGATED ELEMENT ADAPTED FOR MOUNTING ADJACENT TO AND PARALLEL TO THE LINE OF MOVEMENT OF SAID MEMBER, LOCKING MEANS FOR RESTRAINING THE MOVEMENT OF SAID MEMBER, SAID LOCKING MEANS BEING POSITIONED ON SAID ELEMENT, AND ENGAGING MEANS RESPONSIVE TO MOVEMENT OF SAID MEMBER ADAPTED FOR ENGAGEMENT WITH SAID LOCKING MEANS INDEPENDENTLY OF THE ROTATIONAL ALIGNMENT BETEEN SAID MEMBER AND SAID LOCKING MEANS, WHEREBY ENGAGEMENT OF SAID LOCKING MEANS AND SAID ENGAGING MEANS MAINTAINS SAID MEMBER IN A STATIC PSOTION.
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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |