US3563789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion resistant metallic substrates
Assignee: Dow Chemical Co
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Filing: 1968-02-16
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Granted: 1971-02-16
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Expires: 1988-02-16
Abstract
Abstract AN ARTICLE OF MANUFACTURE IS DESCRIBED WHICH COMPRISES A CORROSI ON RESISTANT METALLIC SUBSTRATE. THE NORMALLY CORROSION-PRONE METALLIC SUBSTRATE IS RENDERED CORROSION RESISTANT BY THE APPLICATION OF ABOUT 0.05 TO ABOUT 25 GRAMS OF A HIGH MOLECULAR WEIGHT OLEFIN POLYSULFONE PER SQUARE FOOT OF METALLIC SUBSTRATE. THE SUBSTRATE CAN BE PAINTED BEFORE OR AFTER THE APPLICATION OF THE RESIN. THE RESIN IS APPLIED TO THE SUBSTRATE BY MEANS OF A LIQUID DISPERSION CONTAINING THE DISPERSED RESIN SUCH AS WATER CONTAINING A SURFACTANT OR AN ORGANIC SOLVENT.
Inventors
- 👤 William Ross Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:13
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/20; C08G75/205; C08G75/22; Y; Y10; Y10T; Y10T428/00; Y10T428/27; Y10T428/273
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |