Patent US2890967A successfully refreshed from Google Patents.
US2890967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphalt coating
Assignee: LION OIL COMPANY (FORMERLY XYZ INC) EL DORADO AK AN AK CORP
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Filing: 1956-02-10
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Granted: 1959-06-16
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Expires: 1976-02-10
Abstract
No abstract record available.
Inventors
- 👤 Arnold J Hoiberg
- 👤 Charles E Cowger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:00
CPC Classifications
C; C08; C08L; C08L95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
AN ASPHALT COATING COMPOSITION CONSISTING ESSENTIALLY OF IN THE UNCURED STATE FROM 40% TO 60% BY WEIGHT OF AN AIR-BLOWN ASPHALT, FROM 30% TO 40% BY WEIGHT OF A SOLVENT FOR SAID ASPHALT, FROM 7% TO 9% BY WEIGHT EXPANDED VERMICULTIE OF A SIZE SUCH THAT 90% IS RETAINED ON A 100 MESH SCREEN, FROM 13% TO 21% BY WEIGHT OF SHORT ASBESTOS FIBER, SAID AIR-BLOWN ASPHALT HAVING A PENETRATION OF FROM 10-30 MM./10 AT 77*F. PRIOR TO INCORPOATING SAID VERMICULITE AND ASBESTOS, A CURED FILM OF SAID COMPOSITION BEING CHARACTERIZED BY HIGH PERMEABILITY TO WATER VAPOR AND IMPERVIOUSNESS TO LIQUID WATER.
Claim 2
Dependent Claim
102 words
AN ASPHALT COATING COMPOSITION CONSISTING ESSENTIALLY OF IN THE UNCURED STATE FROM 40% TO 60% BY WEIGHT OF AN AIR-BLOWN ASPHALT, FROM 30% TO 40% BY WEIGHT OF A SOLVENT FOR SAID ASPHALT, FROM 7% TO 9% BY WEIGHT EXPANDED VERMICULTIE OF A SIZE SUCH THAT 90% IS RETAINED ON A 100 MESH SCREEN, FROM 13% TO 21% BY WEIGHT OF SHORT ASBESTOS FIBER, SAID AIR-BLOWN ASPHALT HAVING A PENETRATION OF FROM 10-30 MM./10 AT 77*F. PRIOR TO INCORPOATING SAID VERMICULITE AND ASBESTOS, A CURED FILM OF SAID COMPOSITION BEING CHARACTERIZED BY HIGH PERMEABILITY TO WATER VAPOR AND IMPERVIOUSNESS TO LIQUID WATER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-15 | 1962-12-15 | 1963-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-15 | 1966-12-15 | 1967-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-15 | 1970-12-15 | 1971-06-16 | $7700.00 | Window Closed / Lapsed |