US2714568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphalt laminate
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1952-02-27
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Granted: 1955-08-02
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Expires: 1972-02-27
Abstract
No abstract record available.
Inventors
- 👤 Raymond G Newberg
- 👤 Edwin R Littmann
- 👤 Francis P Ford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:31
CPC Classifications
C; C08; C08L; C08L95/00; B; B32; B32B; B32B27/00; C09; C09J; C09J195/00; C08L2666/00; C08L2666/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31815; Y10T428/31819; Y10T428/31823
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
96 words
A LAMINATED PRODUCT CONSISTING OF AT LEAST TWO SHEETS OF PAPER, CARDBOARD AND THE LIKE AND A LIQUID CEMENTITIOUS COMPOSITION BETWEEN SAID SHEETS, SAID CEMENTITIOUS COMPOSITION CONSISTING OF AN OXIDIZED ASPHALT HAVING INCORPORATED THEREIN EQUAL PROPORTIONS OF, IN AMOUNTS OF 1 TO 3% BY WEIGHT BASED ON THE ASPHALT, A HYDROCARBON OIL HAVING A VISCOSITY AT 210* F., BETWEEN 70 AND 1000 SSU AND A COPOLYMER OF 20 TO 80% STYRENE AND 80 TO 20% OF ISOBUTYLENE, SAID COPOLYMER HAVING AN INTRINSIC VISCOSITY GREATER THAN 0.7 AND BEING PREPARED BY COPOLYMERIZATION AT TEMPERATURES BELOW -50* C.
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) | 1958-08-01 | 1959-01-31 | 1959-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-01 | 1963-01-31 | 1963-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-01 | 1967-01-31 | 1967-08-02 | $7700.00 | Window Closed / Lapsed |