US3309329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bituminous compositions containing amorphous polypropylene and an ethylene-vinyl acetate copolymer
Assignee: Hoechst AG
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Filing: 1962-12-03
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Granted: 1967-03-14
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Expires: 1982-12-03
Abstract
No abstract record available.
Inventors
- 👤 Schultz Gerhart
- 👤 Lorentz Guido Max Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:57
CPC Classifications
C; C08; C08L; C08L95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF A BITUMINOUS BINDING AGENT, 1-10 PERCENT BY WEIGHT, CALCULATED ON THE BITUMINOUS BINDING AGENT, OF AN AMORPHOUS CRACKED POLYPROPYLENE HAVING A VISCOSITY IN THE MELT AFTER CRACKING OF 120 CENTIPOISES AT 180*C. AND 1-10 PERCENT BY WEIGHT, CALCULATED ON THE BITUMINOUS BINDING AGENT, OF AN AMORPHOUS COPOLYMER OF ETHYLENE AND VINYL ACETATE HAVING A VINYL ACETATE CONTENT OF 25-50 PERCENT BY WEIGHT, CALCULATED N TH COPOLYMER.
Claim 2
Dependent Claim
72 words
COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF A BITUMINOUS BINDING AGENT, 1-10 PERCENT BY WEIGHT, CALCULATED ON THE BITUMINOUS BINDING AGENT, OF AN AMORPHOUS CRACKED POLYPROPYLENE HAVING A VISCOSITY IN THE MELT AFTER CRACKING OF 120 CENTIPOISES AT 180*C. AND 1-10 PERCENT BY WEIGHT, CALCULATED ON THE BITUMINOUS BINDING AGENT, OF AN AMORPHOUS COPOLYMER OF ETHYLENE AND VINYL ACETATE HAVING A VINYL ACETATE CONTENT OF 25-50 PERCENT BY WEIGHT, CALCULATED N TH COPOLYMER.
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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |