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US3497435A
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US
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Photoisomerization of alpha,alpha'-dimethylmuconic acid
Assignee: Sunoco Inc
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Filing: 1968-05-27
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Granted: 1970-02-24
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Expires: 1988-05-27
Abstract
No abstract record available.
Inventors
- 👤 William W Wimer
- 👤 George Suld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:24
CPC Classifications
C; C07; C07C; C07C57/00; C07C57/02; C07C57/13; C07C51/00; C07C51/347; C07C51/353; Y; Y10; Y10S; Y10S204/00; Y10S204/90; Y10S204/902; Y10S204/912; Y10S204/914
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2979445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |