US3558538A
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US
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Mastic compositions based on ethylenepropylene copolymers or on ethylenepropylene-non-conjugated diene terpolymers
Assignee: Solvay SA
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Filing: 1967-07-03
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Granted: 1971-01-26
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Expires: 1987-07-03
Abstract
Abstract NON-HEATING AND SURFACE HARDENING MASTICS ARE PRVIDED. THE NON-HARDENING MASTICS ARE COMPOSED OF AN ELASTOMERIC ETHYLENE-PROPYLENE COPOLYMER OR ETHYLENEPROPYLENE-NON-CONJUGATED DIENE TERPOLYMER, A MINERAL OIL AND A FILLER. THE SURFACE HARDENING MASTICS ARE ADDITIONALLY COMPOSED OF A DRYING OIL
Inventors
- 👤 Friedrich Wollrab
- 👤 Maurice Gerkens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:53
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/10; C09J; C09J123/00; C09J123/02; C09J123/16; C08; C08L; C08L2666/00; C08L2666/02; C09K2200/00; C09K2200/02; C09K2200/0204; C09K2200/0208; C09K2200/0239; C09K2200/0243; C09K2200/0252; C09K2200/026; C09K2200/04; C09K2200/0405; C09K2200/06; C09K2200/0615; C09K2200/0617; C09K2200/0642
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |