US2894022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diesters of aliphatic dicarboxylic acids and hydroxy benzophenones
Assignee: Dow Chemical Co
•
Filing: 1956-08-02
•
Granted: 1959-07-07
•
Expires: 1976-08-02
Abstract
No abstract record available.
Inventors
- 👤 Carl B Havens
- 👤 Gerald A Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:28
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/134
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
AS A NEW ORGANIC COMPOUND A DIESTER HAVING THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
12 words
AS A NEW ORGANIC COMPOUND A DIESTER HAVING THE FOLLOWING GENERAL FORMULA:
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) | 1962-07-06 | 1963-01-05 | 1963-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-06 | 1967-01-05 | 1967-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-06 | 1971-01-05 | 1971-07-07 | $7700.00 | Window Closed / Lapsed |