US2512722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyesters of 2-ethylhexanediol-1, 3
Assignee: Union Carbide Corp
•
Filing: 1947-05-20
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Granted: 1950-06-27
•
Expires: 1967-05-20
Abstract
No abstract record available.
Inventors
- 👤 William M Lanham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:36
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/16; C08G63/20; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
LIQUID POLYESTERS OF 2-ETHYLHEXANEDIOL-1,3 WITH ALIPHATIC SATURATED DICARBOXYLIC ACIDS HAVING FROM FOUR TO TEN CARBON ATOMS, SAID POLYESTERS HAVING AN AVERAGE MOLECULAR WEIGHT OF AT LEAST 500.
Claim 2
Dependent Claim
27 words
LIQUID POLYESTERS OF 2-ETHYLHEXANEDIOL-1,3 WITH ALIPHATIC SATURATED DICARBOXYLIC ACIDS HAVING FROM FOUR TO TEN CARBON ATOMS, SAID POLYESTERS HAVING AN AVERAGE MOLECULAR WEIGHT OF AT LEAST 500.
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) | 1953-06-26 | 1953-12-26 | 1954-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-26 | 1957-12-26 | 1958-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-26 | 1961-12-26 | 1962-06-27 | $7700.00 | Window Closed / Lapsed |