US3304347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unsaturated polyester prepared from bis (hydroxyalkyleneoxycarbonyl) benzenes
Assignee: Union Carbide Corp
•
Filing: 1964-04-06
•
Granted: 1967-02-14
•
Expires: 1984-04-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles W Mcgary
- 👤 Percy L Smith
- 👤 Lowell R Comstock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:58
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/56; C08G63/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A COMPOSITION THAT COMPRISES A STYRENE SOLUTION OF A POLYESTER, SAID POLYESTER CONSISTING ESSENTIALLY OF THE REACTION PRODUCT OF (A) AN UNSATURATED DICARBOXYLIC ACID OR ANHYDRIDE THEREOF AND (B) A DIESTER OF THE FORMULA:
Claim 2
Dependent Claim
34 words
A COMPOSITION THAT COMPRISES A STYRENE SOLUTION OF A POLYESTER, SAID POLYESTER CONSISTING ESSENTIALLY OF THE REACTION PRODUCT OF (A) AN UNSATURATED DICARBOXYLIC ACID OR ANHYDRIDE THEREOF AND (B) A DIESTER OF THE FORMULA:
References Cited (Backward Citations)
US2822350A
Cited
US3142733A
Cited
US3160679A
Cited
US3037049A
Cited
US3060223A
Cited
US3196131A
Cited
FR1323354A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |