Patent US1809797A successfully refreshed from Google Patents.
Patent US3759751A successfully refreshed from Google Patents.
US3759751A
Expired / Lapsed
US
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Corrosion resisting wash primer composition and corrosion protected metal surface
Assignee: Finch Paint and Chemical Co
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Filing: 1970-10-30
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Granted: 1973-09-18
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Expires: 1990-10-30
Abstract
Abstract WASH PRIMER COMPRISING AN EPOXY RESIN, AN INORGANIC CHROMATE AND AN AMINO SILANE FOR DEPOSITING, PARTICULARLY ON AIRCRAFT SURFACES, A STRONGLY ADHERENT CORROSION INHIBITING FILM WHICH IS INSOLUBLE IN JET FUEL AND RESISTS AIRCRAFT HYDRAULIC FLUIDS, BUT WHICH IS LIFTED BY PAINT STRIPPING COMPOUNDS, AND METAL SURFACES PROTECTED AGAINST CORROSION BY THE COMBINATION OF A FILM DEPOSITED FROM THE WASH PRIMER ADHERING TO THE METAL SURFACE, AN INTEMEDIATE PRIMER COAT ADHERING TO THE FILM FROM WASH PRIMER, AND A HIGHLY CROSS LINKED SOLVENT INSOLUBLE TOP COAT.
Inventors
- 👤 H Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:08
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/08; C09D5/12; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/58; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4014; C08G59/4028; C09D163/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31522; Y10T428/31551
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) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |