US3023222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxides of bicyclic acetals
Assignee: Union Carbide Corp
•
Filing: 1958-07-10
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Granted: 1962-02-27
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Expires: 1978-07-10
Abstract
No abstract record available.
Inventors
- 👤 Howard R Guest
- 👤 Joe T Adams
- 👤 Ben W Kiff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:15
CPC Classifications
C; C07; C07D; C07D493/00; C07D493/02; C07D493/10; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |