US2534713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphalt wetting agents
Assignee: Standard Oil Development Co
•
Filing: 1948-12-31
•
Granted: 1950-12-19
•
Expires: 1968-12-31
Abstract
No abstract record available.
Inventors
- 👤 Elinor M Hankins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:36
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
AN IMPROVED BITUMINOUS BONDING COMPOSITION COMPRISING A MIXTURE OF ASPHALT AND AT LEAST ONE ANTI-STRIPPING ADDITION AGENT, PRESENT IN A CONCENTRATION FROM ABOUT .25 TO 2.0% SELECTED FROM THE GROUP CONSISTING OF A CONDENSATION PRODUCT OF A POLYALKYLENE POLYAMINE WITH A HALOGEN DERIVATIVE OF A POLYCYCLOPENTADIENE AND THE SALT PRODUCTS DERIVED BY TREATING SAID CONDENSATION PRODUCTS WITH ACID, AND MIXTURES THEREOF.
Claim 2
Dependent Claim
61 words
AN IMPROVED BITUMINOUS BONDING COMPOSITION COMPRISING A MIXTURE OF ASPHALT AND AT LEAST ONE ANTI-STRIPPING ADDITION AGENT, PRESENT IN A CONCENTRATION FROM ABOUT .25 TO 2.0% SELECTED FROM THE GROUP CONSISTING OF A CONDENSATION PRODUCT OF A POLYALKYLENE POLYAMINE WITH A HALOGEN DERIVATIVE OF A POLYCYCLOPENTADIENE AND THE SALT PRODUCTS DERIVED BY TREATING SAID CONDENSATION PRODUCTS WITH ACID, AND MIXTURES THEREOF.
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) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |