Patent US3749758A successfully refreshed from Google Patents.
US3749758A
Expired / Lapsed
US
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Polyesters derived from dimethylol propionic acid in admixture with polyepoxides
Assignee: Novartis Corp
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Filing: 1971-09-30
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Granted: 1973-07-31
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Expires: 1991-09-30
Abstract
Abstract COMPOSITIONS COMPRISING CARBOXYL CONTAINING POLYESTERS AND DI- OR POLYEPOXIDES. THE COMPOSITIONS WHEN CURED EXHIBIT EXCELLENT ADHESION TO UNTREATED AND TREATED SUBSTRATES, EXCELLENT FLEXIBILITY AND GOOD RESISTANCE TO CHEMICAL ATTACK.
Inventors
- 👤 J Gannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:40
CPC Classifications
C; C09; C09D; C09D163/00; C08; C08G; C08G63/00; C08G63/02; C08G63/06; C08G63/60; C09D167/00
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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |