Patent US3123820A successfully refreshed from Google Patents.
US3220879A
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Sealing strip comprising polychloroprene rubber base coated with composition consisting essentially of silicone gum and chlorinated sulfonated polyethylene
Assignee: Motors Liquidation Co
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Filing: 1964-07-29
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Granted: 1965-11-30
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Expires: 1984-07-29
Abstract
No abstract record available.
Inventors
- 👤 Donald E Stare
- 👤 Donald R Strack
- 👤 Harold J Reindl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:36
CPC Classifications
C; C08; C08L; C08L11/00; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/046; C08L21/00; C08L23/00; C08L23/02; C08L23/18; C08L23/20; C08L23/22; C08L23/26; C08L23/32; C08L23/34; C08L33/00; C08L33/04; C08L33/06; C08L33/10; C08L33/12; C08L83/00; C09; C09J; C09J123/00; C09J123/02; C09J123/18; C09J123/20; C09J123/22; C09J123/26; C09J123/32; C09J123/34; C08J2321/00; C08J2433/00; C08J2433/04; C08J2433/06; C08J2433/10; C08J2433/12; C08L2666/00; C08L2666/02; C08L2666/14; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T428/31667; Y10T428/31826; Y10T428/31833; Y10T428/31837
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A SEALING STRIP ADAPTED TO SEAL A CLOSURE MEMBER TO A FRAME MEMBER AND TO BE CARRIED BY ONE OF SAID MEMBERS SAID SEALING STRIP BEING FLEXED UPON EACH OPENING AND CLOSING MOVEMENT OF SAID CLOSURE MEMBER AND CONSISTING ESSENTIALLY OF A POLYCHLOROPRENE RUBBER BASE AND A SLIP COAT COEXTENSIVELY COVERING THE ENTIRE EXTERNAL SURFACE THEREOF AND CONSISTING ESSENTIALLY OF AN INITIALLY FLUID, CHLORINATED, SULFONATED POLYETHYLENE CEMENT INCLUDING DEVOLATILIZED METHYL VINYL SILICONE GUM HAVING A VERY HIGH MOLECULAR WEIGHT OF ABOUT 200,000 AND CONTAINING ABOUT .2 MOL PRECENT OF VINYL GROUP THEREIN IN QUANTITIES OF ABOUT 20% BY WEIGHT OF THE CHLORINATED, SULFONATED POLYETHYLENE USED AND DISPERSED THROUGHOUT THE CEMENT IN AN UNCURED CONDITION, SAID POLYMER BEING CAPABLE OF BLEEDING TO THE SURFACE OF THE COATING FOR ENHANCING THE LUBRICATION QUALITIES THEREOF.
Claim 2
Dependent Claim
132 words
A SEALING STRIP ADAPTED TO SEAL A CLOSURE MEMBER TO A FRAME MEMBER AND TO BE CARRIED BY ONE OF SAID MEMBERS SAID SEALING STRIP BEING FLEXED UPON EACH OPENING AND CLOSING MOVEMENT OF SAID CLOSURE MEMBER AND CONSISTING ESSENTIALLY OF A POLYCHLOROPRENE RUBBER BASE AND A SLIP COAT COEXTENSIVELY COVERING THE ENTIRE EXTERNAL SURFACE THEREOF AND CONSISTING ESSENTIALLY OF AN INITIALLY FLUID, CHLORINATED, SULFONATED POLYETHYLENE CEMENT INCLUDING DEVOLATILIZED METHYL VINYL SILICONE GUM HAVING A VERY HIGH MOLECULAR WEIGHT OF ABOUT 200,000 AND CONTAINING ABOUT .2 MOL PRECENT OF VINYL GROUP THEREIN IN QUANTITIES OF ABOUT 20% BY WEIGHT OF THE CHLORINATED, SULFONATED POLYETHYLENE USED AND DISPERSED THROUGHOUT THE CEMENT IN AN UNCURED CONDITION, SAID POLYMER BEING CAPABLE OF BLEEDING TO THE SURFACE OF THE COATING FOR ENHANCING THE LUBRICATION QUALITIES THEREOF.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |