Patent EP0118947A1 successfully refreshed from Google Patents.
US3072706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclopentenyl cyclopenteneacetic acid and derivatives
Assignee: —
•
Filing: 1960-09-08
•
Granted: 1963-01-08
•
Expires: 1980-09-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:32
CPC Classifications
C; C07; C07C; C07C57/00; C07C57/26
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
13 words
BICYCLOPENTENYL COMPOUNDS WHICH ARE MIXTURES OF ISOMERS SELECTED FROM THE GROUP CONSISTING OF:
Claim 2
Dependent Claim
13 words
BICYCLOPENTENYL COMPOUNDS WHICH ARE MIXTURES OF ISOMERS SELECTED FROM THE GROUP CONSISTING OF:
Claim 3
Dependent Claim
18 words
MIXTURES OF BICYCLOPENTENYL COMPOUNDS AS DEFINED IN CLAIM 1 WHEREIN X IS -OC2H5 AND EACH R IS HYDROGEN.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |