US3030238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating metal surfaces
Assignee: SAMUEL L COHN
•
Filing: 1957-12-27
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Granted: 1962-04-17
•
Expires: 1977-12-27
Abstract
No abstract record available.
Inventors
- 👤 Charles C Cohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:40
CPC Classifications
C; C23; C23G; C23G5/00; C23G5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
THE METHOD OF TREATING A METAL SURFACE COMPRISING TREATING THE METAL SURFACE WITH AN ORGANIC SOLVENT TO DISPLACE MATEIAL FROM STHE SURFACE, AND THEREAFTER RINSING THE SOLVENT COATED SURFACE WITH WATER CARRYING A WETTING AGENT WHICH IS NOT A SOAP TO REMOVE RESIDUAL SOLVENT COATING IN EXCESS OF A UNIFORMLY THIN FILM THEREOF.
Claim 2
Independent Claim
53 words
THE METHOD OF TREATING A METAL SURFACE COMPRISING TREATING THE METAL SURFACE WITH AN ORGANIC SOLVENT TO DISPLACE MATEIAL FROM STHE SURFACE, AND THEREAFTER RINSING THE SOLVENT COATED SURFACE WITH WATER CARRYING A WETTING AGENT WHICH IS NOT A SOAP TO REMOVE RESIDUAL SOLVENT COATING IN EXCESS OF A UNIFORMLY THIN FILM THEREOF.
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
US2748784A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |