Patent US1384936A successfully refreshed from Google Patents.
Patent US2597843A successfully refreshed from Google Patents.
US2597843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclopentenyl carbinols
Assignee: Universal Oil Products Co
•
Filing: 1950-05-09
•
Granted: 1952-05-27
•
Expires: 1970-05-09
Abstract
No abstract record available.
Inventors
- 👤 Carl B Linn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:29
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/61; C07C45/67; C07C31/00; C07C31/13; C07C45/65; C07C45/66; C07C45/68; C07C45/72; C07C45/73
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A CARBINOL HAVING A STRUCTURAL FORMULA SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
12 words
A CARBINOL HAVING A STRUCTURAL FORMULA SELECTED FROM THE GROUP CONSISTING OF
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |