US2897208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making oxirane compounds
Assignee: Union Carbide Corp
•
Filing: 1956-12-17
•
Granted: 1959-07-28
•
Expires: 1976-12-17
Abstract
No abstract record available.
Inventors
- 👤 Phillips Benjamin
- 👤 Paul S Starcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:01
CPC Classifications
C; C07; C07D; C07D491/00; C07D491/02; C07D491/04; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3415; C08K5/3417
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
AS NEW EPOXIDES, 4,5-EPOXYCYCLOHEXANE-1,2-DICARBOXIMIDES CHARACTERIZED BY THE GENERAL FORMULA:
Claim 2
Dependent Claim
9 words
AS NEW EPOXIDES, 4,5-EPOXYCYCLOHEXANE-1,2-DICARBOXIMIDES CHARACTERIZED BY THE GENERAL FORMULA:
References Cited (Backward Citations)
US2452315A
Cited
US2732357A
Cited
US2547542A
Cited
US2698851A
Cited
US2720497A
Cited
US2795589A
Cited
US2784199A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |