US3129197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions and process for manufacturing molded rubber articles
Assignee: H Muehlstein & Co Inc
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Filing: 1961-01-23
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Granted: 1964-04-14
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Expires: 1981-01-23
Abstract
No abstract record available.
Inventors
- 👤 Walter O Farrell
- 👤 Louis S Verde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:13
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/02; C08K3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A LIQUID HARD RUBBER PREMIX COMPOSITION COMPRISING FROM ABOUT 20 TO ABOUT 50 PARTS OF SULFUR AND FROM ABOUT .01 TO ABOUT 300 PARTS OF A FILLER NON-ABSORPTIVE FOR STYRENE-BUTADIENE COPOLYMER PER 100 PARTS OF A LIQUID STYRENE-BUTADIENE COPOLYMER HAVING A VISCOSITY IN THE RANGE OF 30-15,000 POISES AT 45*C. AND A BUTADIENE CONTENT FROM ABOUT 60 TO ABOUT 95 PERCENT BY WEIGHT.
Claim 2
Dependent Claim
63 words
A LIQUID HARD RUBBER PREMIX COMPOSITION COMPRISING FROM ABOUT 20 TO ABOUT 50 PARTS OF SULFUR AND FROM ABOUT .01 TO ABOUT 300 PARTS OF A FILLER NON-ABSORPTIVE FOR STYRENE-BUTADIENE COPOLYMER PER 100 PARTS OF A LIQUID STYRENE-BUTADIENE COPOLYMER HAVING A VISCOSITY IN THE RANGE OF 30-15,000 POISES AT 45*C. AND A BUTADIENE CONTENT FROM ABOUT 60 TO ABOUT 95 PERCENT BY WEIGHT.
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) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |