US3640964A
Expired / Lapsed
US
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Dibromoneopentyl glycol modified polyesters
Assignee: FMC Corp
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Filing: 1969-06-26
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Granted: 1972-02-08
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Expires: 1989-06-26
Abstract
Abstract A LINEAR POLYESTER RESIN COMPRISING THE POLYCONDENSATION PRODUCT OF (1) A GLYCOL DICARBOXYLATE OR A PRECONDENSATE OF SAID DICARBOXYLATE, PREPARED BY A CONDENSATION REACTION BETWEEN AN ALIPHATIC GLYCOL AND A SATURATED AROMATIC DICARBOXYLIC ACID OR LOWER ALKYL DIESTER THEREOF, AND (2) A MINOR AMOUNT OF DIBROMONEOPENTYL GLYCOL.
Inventors
- 👤 Mary J Stewart
- 👤 John A Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:24
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/682; C08G63/6824; C08G63/6826
Claims Analysis
Total Claims: 0
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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) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |