Patent US2891084A successfully refreshed from Google Patents.
US2891084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing same
Assignee: —
•
Filing: —
•
Granted: 1959-06-16
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Expires: 1976-06-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:09
CPC Classifications
C; C07; C07C; C07C55/00; C07C55/02; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A PROCESS FOR THE PREPARATION OF AN ISOMERIC MIXTURE OF COMPOUNDS OXIDIZIBLE TO C19 ALIPHATIC DICARBOXYLIC ACIDS HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
21 words
A PROCESS FOR THE PREPARATION OF AN ISOMERIC MIXTURE OF COMPOUNDS OXIDIZIBLE TO C19 ALIPHATIC DICARBOXYLIC ACIDS HAVING THE GENERAL FORMULA:
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) | 1962-06-15 | 1962-12-15 | 1963-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-15 | 1966-12-15 | 1967-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-15 | 1970-12-15 | 1971-06-16 | $7700.00 | Window Closed / Lapsed |