Patent US3462286A successfully refreshed from Google Patents.
US3462286A
Expired / Lapsed
US
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Method of coating webs with photographic emulsions or other liquid compositions utilizing an electric field
Assignee: Gevaert Photo Producten NV
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Filing: 1963-07-16
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Granted: 1969-08-19
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Expires: 1983-07-16
Abstract
No abstract record available.
Inventors
- 👤 Wilfried Florent De Geest
- 👤 Paul August Verkinderen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:57
CPC Classifications
B; B29; B29C; B29C41/00; B29C41/006; G; G03; G03C; G03C1/00; G03C1/74; B05; B05C; B05C11/00; B05C11/02; B05C11/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
THE METHOD OF COATING A FLOWABLE LIQUID COMPOSITION HAVING A SPECIFIC CONDUCTIVITY OF AT LEAST 10**-10 MHOS/CC. ONTO THE SURFACE OF A MOVING WEB OF INSULATING MATERIAL WHICH COMPRISES: (1) PASSING SAID WEB ALONG A PATH SUCH THAT THE BACK SURFACE THEREOF MOVES IN AT LEAST CLOSE PROXIMITY TO AN ELECTRICALLY CONDUCTIVE MEMBER EXTENDING SUBSTANTIALLY THE WIDTH OF THE WEB; (2) FLOWING SAID LIQUID COMPOSITION IN A CONTINUOUS LIQUID MASS ONTO SAID SURFACE FROM A SUPPLY THEREOF MAINTAINED ON THE OPPOSITE SURFACE OF SAID WEB FROM SAID MEMBER IN GENERAL ALIGHMENT THEREWITH; AND (3) ESTABLISHING AND MAINTAINING AN ELECTRICAL FIELD BETWEEN SAID LIQUID COMPOSITION AND SAID MEMBER OF A POTENTIAL INSUFFICIENT TO CAUSE IONIZATION THEREBETWEEN BUT SUFFICIENT TO INCREASE THE CONTACT AREA AND ADHESION BETWEEN SAID LIQUID COMPOSITION AND THE WEB SURFACE.
Claim 2
Independent Claim
132 words
THE METHOD OF COATING A FLOWABLE LIQUID COMPOSITION HAVING A SPECIFIC CONDUCTIVITY OF AT LEAST 10**-10 MHOS/CC. ONTO THE SURFACE OF A MOVING WEB OF INSULATING MATERIAL WHICH COMPRISES: (1) PASSING SAID WEB ALONG A PATH SUCH THAT THE BACK SURFACE THEREOF MOVES IN AT LEAST CLOSE PROXIMITY TO AN ELECTRICALLY CONDUCTIVE MEMBER EXTENDING SUBSTANTIALLY THE WIDTH OF THE WEB; (2) FLOWING SAID LIQUID COMPOSITION IN A CONTINUOUS LIQUID MASS ONTO SAID SURFACE FROM A SUPPLY THEREOF MAINTAINED ON THE OPPOSITE SURFACE OF SAID WEB FROM SAID MEMBER IN GENERAL ALIGHMENT THEREWITH; AND (3) ESTABLISHING AND MAINTAINING AN ELECTRICAL FIELD BETWEEN SAID LIQUID COMPOSITION AND SAID MEMBER OF A POTENTIAL INSUFFICIENT TO CAUSE IONIZATION THEREBETWEEN BUT SUFFICIENT TO INCREASE THE CONTACT AREA AND ADHESION BETWEEN SAID LIQUID COMPOSITION AND THE WEB SURFACE.
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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) | 1972-08-18 | 1973-02-17 | 1973-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-18 | 1977-02-17 | 1977-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-18 | 1981-02-17 | 1981-08-19 | $7700.00 | Window Closed / Lapsed |