US3118793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of pretreating and phosphatizing a metal surface for siccative coatings
Assignee: Detrex Corp
•
Filing: 1960-12-06
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Granted: 1964-01-21
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Expires: 1980-12-06
Abstract
No abstract record available.
Inventors
- 👤 James E Maloney
- 👤 Jr Wilford H Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:38
CPC Classifications
B; B05; B05D; B05D3/00; B05D3/10; C; C23; C23C; C23C22/00; C23C22/78
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN A METHOD OF PRODUCING A CORROSION RESISTANT COATING ON A FERROUS METAL SURFACE INCLUDING THE STEPS OF FORMING AN INTEGRAL ADHERENT METAL PHOSPHATE COATING ON SAID SURFACE, AND SUBSEQUENTLY APPLYING A COATING OF SICCATIVE MATERIAL UPON SAID METAL PHOSPHATE COATED SURFACE, THE IMPROVEMENT WHICH COMPRISES PRETREATING SAID METAL SURFACE PRIOR TO THE FORMATION OF SAID METAL PHOSPHATE COATING BY APPLYING TO SAID METAL A PRETREATING SOLUTION CONSISTING ESSENTIALLY OF A SUBSTITUTED SHORT CHAIN MONOCARBOXYLIC ACID SELECTED FROM THE CLASS CONSISTING OF GLYCOLIC, LACTIC, HYDROXY PROPIONIC, HYDROXY BUTYRIC, HYDROXY VALERIC, HYDROXY CAPROIC, GLYCERIC, DIGLYCOLIC, THIOGLYCOLIC, THIODIGLYCOLIC, MONOCHLOROACETIC, DICHLOROACETIC, TRICHLOROACETIC, A-CHLOROPROPIONIC, AMINOACETIC AND CYANOACETIC ACID, AND A LIQUID DILUENT FOR SAID ACID, SAID ACID CONSTITUTING AT LEAST ABOUT .001 PERCENT BY WEIGHT OF SAID SOLUTION.
Claim 2
Dependent Claim
124 words
IN A METHOD OF PRODUCING A CORROSION RESISTANT COATING ON A FERROUS METAL SURFACE INCLUDING THE STEPS OF FORMING AN INTEGRAL ADHERENT METAL PHOSPHATE COATING ON SAID SURFACE, AND SUBSEQUENTLY APPLYING A COATING OF SICCATIVE MATERIAL UPON SAID METAL PHOSPHATE COATED SURFACE, THE IMPROVEMENT WHICH COMPRISES PRETREATING SAID METAL SURFACE PRIOR TO THE FORMATION OF SAID METAL PHOSPHATE COATING BY APPLYING TO SAID METAL A PRETREATING SOLUTION CONSISTING ESSENTIALLY OF A SUBSTITUTED SHORT CHAIN MONOCARBOXYLIC ACID SELECTED FROM THE CLASS CONSISTING OF GLYCOLIC, LACTIC, HYDROXY PROPIONIC, HYDROXY BUTYRIC, HYDROXY VALERIC, HYDROXY CAPROIC, GLYCERIC, DIGLYCOLIC, THIOGLYCOLIC, THIODIGLYCOLIC, MONOCHLOROACETIC, DICHLOROACETIC, TRICHLOROACETIC, A-CHLOROPROPIONIC, AMINOACETIC AND CYANOACETIC ACID, AND A LIQUID DILUENT FOR SAID ACID, SAID ACID CONSTITUTING AT LEAST ABOUT .001 PERCENT BY WEIGHT OF SAID SOLUTION.
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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) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |