US3578615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy resin coatings having improved cathodic disbonding resistance
Assignee: Shell USA Inc
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Filing: 1968-04-08
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Granted: 1971-05-11
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Expires: 1988-04-08
Abstract
Abstract EPOXY RESIN POWDER COATINGS HAVING IMPROVED CATHODIC DISBONDING RESISTANCE AND WHICH CAN BE EFFICIENTLY APPLIED LY FLUIDIZED BED TECHNIQUES COMPRISE (1) A POLYEPOXIDE, (2) AN EPOXY CURING AGENT, (3) A CATALYST, AND (4) A SUITABLE BONDING ADDITIVE HEREINAFTER MORE FULLY DESCRIBED (E.G., BARIUM SULFATE, STRONTIUM CHROMATE, O-NITROPHENOL, PHOSPHORIC ACID, AND AMINOSILANES).
Inventors
- 👤 Robert J Moore
- 👤 Roy A Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:30
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/68; C08G59/40; C08G59/42; C09; C09D; C09D163/00; Y; Y10; Y10S; Y10S524/00; Y10S524/904
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) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |