US2698280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a plasticizer
Assignee: Atlantic Richfield Co
•
Filing: 1949-04-04
•
Granted: 1954-12-28
•
Expires: 1969-04-04
Abstract
No abstract record available.
Inventors
- 👤 Arthur B Hersberger
- 👤 John C Reid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:36
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/18; C08; C08K; C08K5/00; C08K5/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1924281A
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US1985860A
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US2334582A
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US2415541A
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US2449027A
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US2529790A
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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) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |