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US2378366A
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Rosin-modified phenol-formaldehyde resin coating compositions
Assignee: Wyeth Holdings LLC
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Filing: 1940-12-05
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Granted: 1945-06-12
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Expires: 1960-12-05
Abstract
No abstract record available.
Inventors
- 👤 Robert C Swain
- 👤 Adams Pierrepont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:40
CPC Classifications
C; C09; C09D; C09D161/00; C09D161/04; C09D161/06; C09D161/14; C09D161/20; C09D161/26; C09D161/28; C08; C08L; C08L61/00; C08L61/04; C08L61/06; C08L61/14; C08L61/20; C08L61/26; C08L61/28
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) | 1948-06-11 | 1948-12-11 | 1949-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-06-11 | 1952-12-11 | 1953-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-06-11 | 1956-12-11 | 1957-06-12 | $7700.00 | Window Closed / Lapsed |