Patent US2430815A successfully refreshed from Google Patents.
US2430815A
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US
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Increasing adhesivity of bitumens for mineral aggregates
Assignee: Atlantic Richfield Co
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Filing: 1945-03-31
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Granted: 1947-11-11
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Expires: 1965-03-31
Abstract
No abstract record available.
Inventors
- 👤 Arthur B Hersberger
- 👤 Felix C Gzemski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:06
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/41; C08K5/42; Y; Y10; Y10S; Y10S106/00; Y10S106/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB510997A
Cited
US2339853A
Cited
GB519119A
Cited
GB543625A
Cited
US2304230A
Cited
US2278954A
Cited
US2375055A
Cited
US2368560A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-10 | 1951-05-12 | 1951-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-10 | 1955-05-12 | 1955-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-10 | 1959-05-12 | 1959-11-11 | $7700.00 | Window Closed / Lapsed |