US2889304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester resin, method of preparing same and electrical conductor coated therewith
Assignee: SCHENECTADY VARNISH COMPANY Inc
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Filing: 1957-03-07
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Granted: 1959-06-02
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Expires: 1977-03-07
Abstract
No abstract record available.
Inventors
- 👤 Howard E Sheffer
- 👤 John F Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:57
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/42; C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/4205; C08G18/4208; C08G18/4211; C08G18/4219; C08G63/00; C08G63/02; C08G63/12; C08G63/16; C08G63/20; C09; C09D; C09D167/00; H01B3/302; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/31504; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A COMPOSITION OF MATTER COMPRISING THE POLYMERIC ESTER OF AN ACID SELECTED FROM THE GROUP CONSISTING OF TEREPHALIC ACID ANS ISOPHTHALIC ACID WITH A MIXTURE OF POLYHYDRIC ALCOHOLS CONSISTING OF (A) 30 TO 70% BY WEIGHT OF A SATURATED ALIPHATIC POLYHYDRIC ALCOHOL HAVING AT LEAST THREE HYDROXYL GROUPS AND (B) 70 TO 30% BY WEIGHT OF AN A,W ALIPHATIC HYDROCARBON DIOL WHEREIN FROM 20 TO 100% BY WEIGHT OF SAID A,W DIOL HAS FOUR TO FIVE CARBON ATOMS AND THE BALANCE OF THE A,W DIOL IS ETHYLENE GLYCOL.
Claim 2
Dependent Claim
88 words
A COMPOSITION OF MATTER COMPRISING THE POLYMERIC ESTER OF AN ACID SELECTED FROM THE GROUP CONSISTING OF TEREPHALIC ACID ANS ISOPHTHALIC ACID WITH A MIXTURE OF POLYHYDRIC ALCOHOLS CONSISTING OF (A) 30 TO 70% BY WEIGHT OF A SATURATED ALIPHATIC POLYHYDRIC ALCOHOL HAVING AT LEAST THREE HYDROXYL GROUPS AND (B) 70 TO 30% BY WEIGHT OF AN A,W ALIPHATIC HYDROCARBON DIOL WHEREIN FROM 20 TO 100% BY WEIGHT OF SAID A,W DIOL HAS FOUR TO FIVE CARBON ATOMS AND THE BALANCE OF THE A,W DIOL IS ETHYLENE GLYCOL.
References Cited (Backward Citations)
US2497376A
Cited
GB629490A
Cited
US2589652A
Cited
US2686739A
Cited
US2686740A
Cited
US2839492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |