US2916462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3, 4 monoepoxide of cyclopentadiene and its homopolymer
Assignee: Columbia Southern Chemical Corp
•
Filing: 1956-06-15
•
Granted: 1959-12-08
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Expires: 1976-06-15
Abstract
No abstract record available.
Inventors
- 👤 Korach Malcolm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:49
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/06; C08G65/08; C07; C07C; C07C35/00; C07C35/02; C07C35/06; C07D; C07D303/00; C07D303/02; C07D303/04; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/68; C08G18/683; C08G18/686; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G65/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
1 words
3,4-EPOXYCYCLOPENTENE.
Claim 2
Dependent Claim
1 words
3,4-EPOXYCYCLOPENTENE.
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) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |