Patent US3294017A successfully refreshed from Google Patents.
US3294017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for electrostatically printing on hot substrate
Assignee: OI Glass Inc
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Filing: 1964-10-19
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Granted: 1966-12-27
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Expires: 1984-10-19
Abstract
No abstract record available.
Inventors
- 👤 John Douglas F St
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:40
CPC Classifications
B; B41; B41M; B41M1/00; B41M1/12; B41M1/125; B41F; B41F15/00; B41F15/08; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
THE METHOD OF APPLYING AN IMAGE SHAPED LAYER OF POWDERED FRIT PARTICLES TO AN ARTICLE SURFACE HEATED TO A RELATIVELY HIGH TEMPERATURE COMPRISING THE STEPS OF INTERPOSING A STENCIL SCREEN HAVING AN IMAGE DEFINING APERTURE THERETHROUGH BETWEEN A SUPPLY OF FRIT PARTICLES CAPABLE OF BEING ELECTRICALLY CHARGED AND THE SURFACE OF A HEATED ARTICLE TO BE DECORATED WITH THE SCREEN DISPOSED IN SPACED RELATIONSHIP TO THE SUPPLY AND TO THE ARTICLE SURFACE, DIFFUSING INTO THE SPACE BETWEEN SAID SUPPLY AND SAID SCREEN A MOISTURE LADEN GASEOUS FLUID AT A TEMPERATURE SUBSTANTIALLY LESS THAN THAT OF THE ARTICLE SURFACE, AND ESTABLISHING AN ELECTRIC FIELD BETWEEN SAID SUPPLY AND ARTICLE SURFACE OPERABLE TO ELECTRICALLY CHARGE AND IMPEL PARTICLES FROM SAID SUPPLY THROUGH THE APERTURES OF SAID SCREEN TO SAID ARTICLE SURFACE.
Claim 2
Independent Claim
129 words
THE METHOD OF APPLYING AN IMAGE SHAPED LAYER OF POWDERED FRIT PARTICLES TO AN ARTICLE SURFACE HEATED TO A RELATIVELY HIGH TEMPERATURE COMPRISING THE STEPS OF INTERPOSING A STENCIL SCREEN HAVING AN IMAGE DEFINING APERTURE THERETHROUGH BETWEEN A SUPPLY OF FRIT PARTICLES CAPABLE OF BEING ELECTRICALLY CHARGED AND THE SURFACE OF A HEATED ARTICLE TO BE DECORATED WITH THE SCREEN DISPOSED IN SPACED RELATIONSHIP TO THE SUPPLY AND TO THE ARTICLE SURFACE, DIFFUSING INTO THE SPACE BETWEEN SAID SUPPLY AND SAID SCREEN A MOISTURE LADEN GASEOUS FLUID AT A TEMPERATURE SUBSTANTIALLY LESS THAN THAT OF THE ARTICLE SURFACE, AND ESTABLISHING AN ELECTRIC FIELD BETWEEN SAID SUPPLY AND ARTICLE SURFACE OPERABLE TO ELECTRICALLY CHARGE AND IMPEL PARTICLES FROM SAID SUPPLY THROUGH THE APERTURES OF SAID SCREEN TO SAID ARTICLE SURFACE.
References Cited (Backward Citations)
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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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |