Patent US2884313A successfully refreshed from Google Patents.
US2884313A
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Method of removing an electrically conducting film
Assignee: Libbey Owens Ford Glass Co
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Filing: 1955-09-07
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Granted: 1959-04-28
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Expires: 1975-09-07
Abstract
No abstract record available.
Inventors
- 👤 Charles M Browne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:25
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/24; B41M5/245; H; H01; H01B; H01B1/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
82 words
A METHOD OF REMOVING SELECTED PORTIONS OF AN ELECTRICALLY CONDUCTING TIN OXIDE FILM FROM CERAMIC MATERIAL, COMPRISING COATING THE FILM WITH A DIELECTRIC ORGANIC LIQUID, ESTABLISHING A VOLTAGE BETWEEN AN ELECTRODE AND THE ELECTRICALLY CONDUCTING FILM, CONTACTING THE ORGANIC LIQUID ON THE FILM WITH THE ELECTRODE AND MOVING THE SAME LINEALLY OVER THE SURFACE OF THE FILM TO REDUCE A LINE OF OXIDE SUBSTANTIALLY TO METALLIC TIN, AND SUBJECTING THE FILM TO AN ACID SOLUTION TO REMOVE THE NEWLY FORMED TIN METAL.
References Cited (Backward Citations)
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US2739112A
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US2722511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |