US3428478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrophobic organic film coated with a polyol-polymethylolamidogen condensate and process for preparation of said film
Assignee: Wyeth Holdings LLC
•
Filing: 1966-02-25
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Granted: 1969-02-18
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Expires: 1986-02-25
Abstract
No abstract record available.
Inventors
- 👤 Malcolm Macfarland Donaldson
- 👤 Adolph Roy Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:22
CPC Classifications
C; C09; C09D; C09D167/00; C09D167/08; C08; C08F; C08F8/00; C08F8/06; C08F8/30; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/54; C08G63/553; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/048; C08J7/052; C08J7/056; C08L; C08L67/00; C09D161/00; C09D161/20; C09J; C09J167/00; C08J2323/00; C08J2323/02; C08J2461/00; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/16; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31736; Y10T428/31739; Y10T428/31743; Y10T428/31746
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |