Patent US161752A successfully refreshed from Google Patents.
Patent US3140729A successfully refreshed from Google Patents.
US3140729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve assembly
Assignee: Individual
•
Filing: 1959-06-22
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Granted: 1964-07-14
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Expires: 1979-06-22
Abstract
No abstract record available.
Inventors
- 👤 Mercier Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:02
CPC Classifications
F; F15; F15B; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B1/10; F15B1/18; F16; F16K; F16K15/00; F16K15/14; F16K15/148; F16K15/16; F15B2201/00; F15B2201/20; F15B2201/205; F15B2201/30; F15B2201/315; F15B2201/3151; F15B2201/3156; F15B2201/40; F15B2201/41; F15B2201/411; F15B2201/415; F15B2201/4155; F15B2201/43; F16K2200/00; F16K2200/40; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7847; Y10T137/7879; Y10T137/7888; Y10T137/789; Y10T137/7891
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A PRESSURE VESSEL COMPRISING A RIGID CONTAINER HAVING A PORT AND A DEFORMABLE EXPANSIBLE PARTITION THEREIN DEFINING TWO CHAMBERS, ONE OF WHICH IS IN COMMUNICATION WITH SAID PORT, A RIGID POROUS MEMBER EXTENDING OVER SAID PORT, A FLEXIBLE MEMBER POSITIONED IN SAID CONTAINER AND EXTENDING OVER THE SURFACE OF SAID POROUS MEMBER, SAID FLEXIBLE MEMBER HAVING A PLURALITY OF PASSAGEWAYS THERETHROUGH, SAID PARTITION UPON EXPANSION THEREOF ABUTTING AGAINST SAID FLEXIBLE MEMBER AND MEANS MOUNTING SAID FLEXIBLE MEMBER TO PERMIT MOVEMENT OF AT LEAST A PORTION THEREOF AWAY FROM SAID POROUS MEMBER.
Claim 2
Dependent Claim
91 words
A PRESSURE VESSEL COMPRISING A RIGID CONTAINER HAVING A PORT AND A DEFORMABLE EXPANSIBLE PARTITION THEREIN DEFINING TWO CHAMBERS, ONE OF WHICH IS IN COMMUNICATION WITH SAID PORT, A RIGID POROUS MEMBER EXTENDING OVER SAID PORT, A FLEXIBLE MEMBER POSITIONED IN SAID CONTAINER AND EXTENDING OVER THE SURFACE OF SAID POROUS MEMBER, SAID FLEXIBLE MEMBER HAVING A PLURALITY OF PASSAGEWAYS THERETHROUGH, SAID PARTITION UPON EXPANSION THEREOF ABUTTING AGAINST SAID FLEXIBLE MEMBER AND MEANS MOUNTING SAID FLEXIBLE MEMBER TO PERMIT MOVEMENT OF AT LEAST A PORTION THEREOF AWAY FROM SAID POROUS MEMBER.
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) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |