US3230290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite gasket and method of applying same
Assignee: Shell USA Inc
•
Filing: 1961-02-23
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Granted: 1966-01-18
•
Expires: 1981-02-23
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Nelson
- 👤 Rollin W Knapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:00
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/14; B; B29; B29D; B29D99/00; B29D99/0053; F16J15/06; F16J15/10; F16J15/104; F16L; F16L23/00; F16L23/16; F16L23/18; F16L23/22; B29L; B29L2031/00; B29L2031/26; Y; Y10; Y10T; Y10T428/00; Y10T428/21; Y10T428/215
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
METHOD OF FORMING A GASKET WHICH COMPRISES THE STEPS OF EMPLACING BETWEEN TWO RIGID FACES TO BE SEALED A COMPOSITE GASKET WHICH INCLUDES A CORE, AN INTERMEDIATE LAYER OF A CONVERTIBLE RESIN WHICH IS IN THE FLOWABLE STATE AND CAPABLE OF SETTING TO FORM A HARD MASS, AND AN OUTER CUSHION LAYER OF RESILIENT GASKET MATERIAL, APPLYING PRESSURE TO THE GASKET BY MOVING SAID FACES TOGETHER AND THEREBY CAUSING THE RESIN TO FLOW AND TO DEFORM THE CUSHION TO A SHAPE IN CONFORMITY TO SAID FACES, AND ALLOWING THE RESIN TO HARDEN.
Claim 2
Dependent Claim
92 words
METHOD OF FORMING A GASKET WHICH COMPRISES THE STEPS OF EMPLACING BETWEEN TWO RIGID FACES TO BE SEALED A COMPOSITE GASKET WHICH INCLUDES A CORE, AN INTERMEDIATE LAYER OF A CONVERTIBLE RESIN WHICH IS IN THE FLOWABLE STATE AND CAPABLE OF SETTING TO FORM A HARD MASS, AND AN OUTER CUSHION LAYER OF RESILIENT GASKET MATERIAL, APPLYING PRESSURE TO THE GASKET BY MOVING SAID FACES TOGETHER AND THEREBY CAUSING THE RESIN TO FLOW AND TO DEFORM THE CUSHION TO A SHAPE IN CONFORMITY TO SAID FACES, AND ALLOWING THE RESIN TO HARDEN.
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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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |