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US2996467A
Expired / Lapsed
US
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Asphalt-oil-rubber composition
Assignee: Dow Chemical Co
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Filing: 1957-03-04
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Granted: 1961-08-15
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Expires: 1977-03-04
Abstract
No abstract record available.
Inventors
- 👤 Harold M Hawley
- 👤 Frederick E Arthur
- 👤 Garald F Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:07
CPC Classifications
C; C08; C08L; C08L95/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2431386A
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US2504605A
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GB660141A
Cited
US2546659A
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US2686166A
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US2700655A
Cited
US2728734A
Cited
US2809179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |