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US3419637A
Expired / Lapsed
US
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Chemical-resistant polyester resins based upon dicyclohexanols and neopentyl glycol-type diols
Assignee: PPG Industries Inc
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Filing: 1966-06-30
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Granted: 1968-12-31
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Expires: 1986-06-30
Abstract
No abstract record available.
Inventors
- 👤 Earl E Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:59
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/54; C08G63/553
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB644287A
Cited
US2828278A
Cited
US2879249A
Cited
US3042650A
Cited
FR1271106A
Cited
US3222421A
Cited
US3345339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |