Patent US3013878A successfully refreshed from Google Patents.
US3013878A
Expired / Lapsed
US
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Method and apparatus for transferring and fixing xerographic images
Assignee: Xerox Corp
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Filing: 1955-12-29
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Granted: 1961-12-19
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Expires: 1975-12-29
Abstract
No abstract record available.
Inventors
- 👤 John H Dessaner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:22
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/14; G03G15/16; G03G15/169; G03G15/22; G03G15/226; G03G15/227
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
IN THE PROCESS OF XEROGRAPHY WHEREIN AN ELECTROSTATIC CHARGE PATTERN CORRESPONDING TO A LIGHT IMAGE IS FORMED ON A SHEET OF INSULATING MATERIAL IN SURFACE CONTACT WITH A XEROGRAPHIC PLATE AND THE CHARGE PATTERN IS DEVELOPED WITH OPPOSITELY CHARGED PARTICLES OF TACKIFIABLE DEVELOPING MATERIAL TO FORM A XEROGRAPHIC POWDER IMAGE ON THE INSULATING MATERIAL CORRESPONDING TO THE PROJECTED IMAGE, AND WHEREIN THE POWDER IMAGE IS TRANSFERRED TO A SUPPORT MATERIAL AND IS FIXED THEREON, THE IMPROVEMENT IN TRANSFERRING AND FIXING THE POWDER IMAGE TO A SUPPORT MATERIAL COMPRISING THE STEPS OF TACKIFYING THE POWDER IMAGE WHILE IN CONTACT WITH THE INSULATING MATERIAL, SUPERPOSING THE SUPPORT MATERIAL ON THE TACKIFIED POWDER IMAGE, PRESSING THE SUPPORT MATERIAL INTO SURFACE CONTACT WITH THE INSULATING MATERIAL, AND SEPARATING THE SUPPORT MATERIAL FROM THE INSULATING MATERIAL
Claim 2
Dependent Claim
131 words
IN THE PROCESS OF XEROGRAPHY WHEREIN AN ELECTROSTATIC CHARGE PATTERN CORRESPONDING TO A LIGHT IMAGE IS FORMED ON A SHEET OF INSULATING MATERIAL IN SURFACE CONTACT WITH A XEROGRAPHIC PLATE AND THE CHARGE PATTERN IS DEVELOPED WITH OPPOSITELY CHARGED PARTICLES OF TACKIFIABLE DEVELOPING MATERIAL TO FORM A XEROGRAPHIC POWDER IMAGE ON THE INSULATING MATERIAL CORRESPONDING TO THE PROJECTED IMAGE, AND WHEREIN THE POWDER IMAGE IS TRANSFERRED TO A SUPPORT MATERIAL AND IS FIXED THEREON, THE IMPROVEMENT IN TRANSFERRING AND FIXING THE POWDER IMAGE TO A SUPPORT MATERIAL COMPRISING THE STEPS OF TACKIFYING THE POWDER IMAGE WHILE IN CONTACT WITH THE INSULATING MATERIAL, SUPERPOSING THE SUPPORT MATERIAL ON THE TACKIFIED POWDER IMAGE, PRESSING THE SUPPORT MATERIAL INTO SURFACE CONTACT WITH THE INSULATING MATERIAL, AND SEPARATING THE SUPPORT MATERIAL FROM THE INSULATING MATERIAL
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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) | 1964-12-18 | 1965-06-19 | 1965-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-18 | 1969-06-19 | 1969-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-18 | 1973-06-19 | 1973-12-19 | $7700.00 | Window Closed / Lapsed |