US3174764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jacketed gasket
Assignee: UNITED STATES GASKET Co
•
Filing: 1961-10-03
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Granted: 1965-03-23
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Expires: 1981-10-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles M Hobson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:42
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/12; F16L23/125; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/108; Y; Y10; Y10S; Y10S277/00; Y10S277/922; Y10S277/935; Y10S277/944; Y10S277/945
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A GASKET CONSTRUCTION COMPRISING AN INNER RESILIENT COMPRESSIBLE SEALING GASKET AND AN OUTER JACET OF FLUOROCARBON RESIN ENCLOSING SAID INNER GASKET, SAID JACET COMPRISING STRIP MATERIAL OF FLUOROCARBON RESIN WITH THE ENDS THEREOF WELDED TOGETHER IN ABUTTING RELATION TO PROVIDE CONTINUOUS SMOOTH UNBROKEN EXPOSED ANNULAR FACES OF SUBSTANTIALLY UNIFORM THICKNESS THROUGHOUT THEIR CIRCUMFERENCES, SAID FACES HAVING BEEN RENDERED NON-SLIPPERY TO INCREASE THEIR COEFFICIENT OF FRICTION TO A MAGNITUDE SUBSTANTIALLY ABOVE THAT OF THE NORMAL COEFFIOCIENT OF FRICTION OF SAID FLUOROCARBON RESIN.
Claim 2
Dependent Claim
81 words
A GASKET CONSTRUCTION COMPRISING AN INNER RESILIENT COMPRESSIBLE SEALING GASKET AND AN OUTER JACET OF FLUOROCARBON RESIN ENCLOSING SAID INNER GASKET, SAID JACET COMPRISING STRIP MATERIAL OF FLUOROCARBON RESIN WITH THE ENDS THEREOF WELDED TOGETHER IN ABUTTING RELATION TO PROVIDE CONTINUOUS SMOOTH UNBROKEN EXPOSED ANNULAR FACES OF SUBSTANTIALLY UNIFORM THICKNESS THROUGHOUT THEIR CIRCUMFERENCES, SAID FACES HAVING BEEN RENDERED NON-SLIPPERY TO INCREASE THEIR COEFFICIENT OF FRICTION TO A MAGNITUDE SUBSTANTIALLY ABOVE THAT OF THE NORMAL COEFFIOCIENT OF FRICTION OF SAID FLUOROCARBON RESIN.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |