Patent US2603652A successfully refreshed from Google Patents.
US2603652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclopentenolone esters of cyclopropane carboxylic acids
Assignee: Individual
•
Filing: 1950-05-11
•
Granted: 1952-07-15
•
Expires: 1970-05-11
Abstract
No abstract record available.
Inventors
- 👤 Milton S Schechter
- 👤 Forge Frederick B La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:04
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/61; C07C45/65; C07C45/66; C07C45/64; C07C45/67; C07C45/673; C07C45/676; C07C49/00; C07C49/04; C07C49/17; C07C49/20; C07C49/203; C07C49/207; C07C49/227; C07C49/24; C07C49/587; C07C49/703; C07C49/707; C07C49/743; C07C49/747
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A CYCLOPROPANE CARBOXYLIC ACID ESTER OF 2ALLYL-4-HYDROXY-3-METHYL-2-CYCLOPENTEN-1-ONE.
Claim 2
Dependent Claim
7 words
A CYCLOPROPANE CARBOXYLIC ACID ESTER OF 2ALLYL-4-HYDROXY-3-METHYL-2-CYCLOPENTEN-1-ONE.
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) | 1955-07-15 | 1956-01-14 | 1956-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-15 | 1960-01-14 | 1960-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-15 | 1964-01-14 | 1964-07-15 | $7700.00 | Window Closed / Lapsed |