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US3544594A
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US
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1,3-dithietane - 2,2,4,4 - tetraacyl chloride and the corresponding ester and amide derivatives
Assignee: Ashland LLC
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Filing: 1968-03-19
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Granted: 1970-12-01
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Expires: 1988-03-19
Abstract
No abstract record available.
Inventors
- 👤 Robert A Grimm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:55
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/688; C08G63/6884; C07; C07D; C07D339/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3113936A
Cited
US3117977A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |