US3560352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for cleaning metal surfaces
Assignee: M&T Chemicals Inc
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Filing: 1965-09-23
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Granted: 1971-02-02
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Expires: 1985-09-23
Abstract
Abstract IN ACCORDANCE WITH CERTAIN OF ITS ASPECTS, THIS INVENTION RELATES TO A PROCESS FOR CLEANING PRETREATED METAL SURFACES BEARING INORGANIC AND ORGANIC CONTAMINANT CONSISTING ESSENTIALLY OF THE STEPS OF IMMERSING SAID PRETREATED METAL SURFACE IN WATER AND THEN IMMERSING SAID PRETREATED METAL SURFACE IN WATER-IMMISCIBLE ORGANIC SOLVENT TO FORM A NON-STABLE SUSPENSION OF WATER IN ORGANIC SOLVENT THEREBY OBTAINING A BRIGHT, CLEAN METAL SURFACE FREE OF CONTAMINANT, AND COATING SAID BRIGHT, CLEAN METAL SURFACE.
Inventors
- 👤 Johannes Van Garderen
- 👤 George G Busch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:33
CPC Classifications
C; C23; C23G; C23G5/00; C23G5/02
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |