US2773893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carboxylic acids of the dicyclohexyl ethane series, and a process of making same
Assignee: Individual
•
Filing: 1953-11-20
•
Granted: 1956-12-11
•
Expires: 1973-11-20
Abstract
No abstract record available.
Inventors
- 👤 Erich M H Radde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:22
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
AN A,B-SUBSTITUTED DIETHYL ETHANE COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
8 words
AN A,B-SUBSTITUTED DIETHYL ETHANE COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US2661369A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-11 | 1960-06-11 | 1960-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-11 | 1964-06-11 | 1964-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-11 | 1968-06-11 | 1968-12-11 | $7700.00 | Window Closed / Lapsed |