US3440201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Melamine - formaldehyde phosphate ether polyol resins useful for coating compositions,process for their preparation and coating compositions containing such resins
Assignee: Sherwin Williams Co
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Filing: 1965-08-26
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Granted: 1969-04-22
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Expires: 1985-08-26
Abstract
No abstract record available.
Inventors
- 👤 Robert E Sempert
- 👤 Robert R Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:52
CPC Classifications
C; C09; C09D; C09D161/00; C09D161/20; C09D161/26; C09D161/28; C08; C08G; C08G12/00; C08G12/02; C08G12/40; C08G79/00; C08G79/02; C08G79/04; C08L; C08L85/00; C08L85/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |