US3397255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkyd resins prepared by simultaneously reacting (1) a polycarboxylic acid (2) a polyhydric alcohol having at least 3 hydroxyl groups and (3) a monoepoxyalkane having 8-26 carbon atoms
Assignee: NL SPENCER KELLOG Inc
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Filing: 1964-12-29
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Granted: 1968-08-13
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Expires: 1984-12-29
Abstract
No abstract record available.
Inventors
- 👤 Carlton E Coats
- 👤 Richard B Graver
- 👤 Stephen F Hudak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:44
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/40; C08G63/42; C08L; C08L67/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA569634A
Cited
US2720050A
Cited
US3065199A
Cited
US3161618A
Cited
US3264267A
Cited
US3249615A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |