US3277038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphalt compositions containing a dry mix of virgin butyl rubber or polyiso-butylenend carbon black
Assignee: Uniroyal Inc
•
Filing: 1960-11-07
•
Granted: 1966-10-04
•
Expires: 1980-11-07
Abstract
No abstract record available.
Inventors
- 👤 Paul R Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:34
CPC Classifications
C; C08; C08L; C08L95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A COMPOSITION CONSISTING ESSENTIALLY OF ASPHALT HAVING INCORPORATED THEREIN A PREVIOUSLY PREPARED DRY MIXTURE OF CARBON NLACK AND VIRGIN POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYISOBUTYLENE HAVING A STAUDINGER MOLECULAR WEIGHT OF AT LEAST 40,000 AND ISOBUTYLENEISOPRENE COPOLYMER SYNTHETIC RUBBER HAVING A STAUDINGER MOLECULAR WEIGHT OF AT LEAST 40,000, SAID POLYMER BEING IN AMOUNT FROM 1 TO 20 PARTS PER 100 PARTS OF SAID ASPHALT, AND SAID CARBON BLACK BEING IN AMOUNT FROM 0.1 TO 2 PARTS PER PART OF SAID POLYMER.
Claim 2
Dependent Claim
83 words
A COMPOSITION CONSISTING ESSENTIALLY OF ASPHALT HAVING INCORPORATED THEREIN A PREVIOUSLY PREPARED DRY MIXTURE OF CARBON NLACK AND VIRGIN POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYISOBUTYLENE HAVING A STAUDINGER MOLECULAR WEIGHT OF AT LEAST 40,000 AND ISOBUTYLENEISOPRENE COPOLYMER SYNTHETIC RUBBER HAVING A STAUDINGER MOLECULAR WEIGHT OF AT LEAST 40,000, SAID POLYMER BEING IN AMOUNT FROM 1 TO 20 PARTS PER 100 PARTS OF SAID ASPHALT, AND SAID CARBON BLACK BEING IN AMOUNT FROM 0.1 TO 2 PARTS PER PART OF SAID POLYMER.
References Cited (Backward Citations)
US2537190A
Cited
US2772903A
Cited
US2822342A
Cited
US2830963A
Cited
US2952650A
Cited
US3042635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |