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Patent US3074973A successfully refreshed from Google Patents.
US3074973A
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4,5-epoxypentyl 4,5-epoxypentanoate and process for its preparation
Assignee: Union Carbide Corp
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Filing: 1958-09-05
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Granted: 1963-01-22
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Expires: 1978-09-05
Abstract
No abstract record available.
Inventors
- 👤 Phillips Benjamin
- 👤 Jr Frederick C Frostick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:15
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/38; C07D303/40; C07D303/44; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2698339A
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US2723247A
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US2779771A
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |