US3790519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphaltic-plastomeric composition
Assignee: DSM Copolymer Inc
•
Filing: 1972-03-10
•
Granted: 1974-02-05
•
Expires: 1992-03-10
Abstract
Abstract A BLEND OF ASPHALTIC MATERIAL AND PLASTOMERIC MATERIAL, WITH OR WITHOUT POLYETHYLENE, IN WHICH THE PLASTOMERIC MATERIAL IS IN THE FORM OF AN EPM OR EPDM PLASTOMER IN WHICH ETHYLENE REPRESENTS 75-90 MOL PERCENT OF THE ETHYLENE-PROPYLENE CONTENT.
Inventors
- 👤 H Wahlborg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:19
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/16; C08L95/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |