US2993807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System of substrate finishing with polyester coatings
Assignee: Sherwin Williams Co
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Filing: 1957-10-17
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Granted: 1961-07-25
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Expires: 1977-10-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Austin C Abbott
- 👤 Mary G Brodie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:20
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/06; B05D7/08; B05D7/50; B05D7/52; B05D7/54; B05D7/542; B05D7/56; B05D7/58; B05D7/582; C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/68; C09; C09D; C09D167/00; C09D167/06; C09D175/00; C09D175/04; C09D175/14; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/31504; Y10T428/31551; Y10T428/31565; Y10T428/31786
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
136 words
A METHOD OF SURFACE COATING A WOOD SUBSTRATE WHICH COMPRISES SEQUENTIALLY APPLYING A WET FILM OF A REACTIVE POLYISOCYANATE POLYMER OF ABOUT 1 MIL THICKNESS AND WHILE SAID FIRST FILM IS IN A SOL STATE, APPLYING A WET FILM OF FROM 5 TO 15 MILS THICKNESS OF AN UNSATURATED POLYESTER RESIN DILUTED WITH A MONOMERIC VINYL COMPOUND POLYMERIZABLE THEREWITH TO THE EXTYENT OF AT LEAST IN EXCESS OF 20% BUT NOT MORE THAN ABOUT 50% BY WEIGHT OF THE REDUCED POLYESTER PRODUCT AND WHILE SAID SECOND COAT IS IN THE SOL STATE, APPLYING THERETO A MIST COAT OF AN ORGANIC POLYMERIZABLE COATING COMPOSITION SELECTED FROM THE GROUP CONSISTING OF ACTIVE POLYISOCYANATE POLYMERS HAVING ONE UNREACTED NCO GROUP FOR EACH URETHANE GROUP IN THE POLYMER MOLECULE AND ETHER RESIN FATTY ACID ESTERS AND CO-CURING THE PLURAL COATINGS.
References Cited (Backward Citations)
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US2852413A
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US2741566A
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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) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |