US2856308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesivity of bituminous binders
Assignee: North Atlantic Energies SA
•
Filing: 1956-01-26
•
Granted: 1958-10-14
•
Expires: 1976-01-26
Abstract
No abstract record available.
Inventors
- 👤 Suprin Jean
- 👤 Tirtiaux Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:55
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
34 words
A COMPOSITION OF MATTER COMPRISING A BITUMEN, AND BETWEEN 0.01 AND 10% BY WEIGHT OF THE CONDENSATION PRODUCT OF A PRIMARY DODECYL AMINE WITH 1 TO 3 MELECULAR PROPORTIONS OF A LOWER ALKYLENE OXIDE.
References Cited (Backward Citations)
US2689263A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |