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US3301675A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrostatic photographic process of making multi-colored prints

Assignee: Harris Graphics Corp
•
Filing: 1965-02-18
•
Granted: 1967-01-31
•
Expires: 1985-02-18
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Abstract

No abstract record available.

Inventors

  • 👤 Donald L Fauser
  • 👤 Edwin R Kolb

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 14:45
CPC Classifications
G; G03; G03G; G03G8/00; G03G13/00; G03G13/06; G03G13/10; G03G15/00; G03G15/01; G03G15/0142; G03G15/0178; G03G15/0194; G03G15/22; G03G5/00; G03G5/12; G03G9/00; G03G9/08; G03G9/12; G03G9/13; G03G9/132

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 161 words
A PROCESS FOR SEQUENTIALLY FORMING A PLURALITY OF IMAGES ON AN IMAGE BEARING MEMBER INCLUDING AN IMAGE BEARING SURFACE COMPRISING THE STEPS OF SEQUENTIALLY FORMING A SERIES OF ELECTROSTATIC LATENT IMAGES ON SAID SURFACE, SEQUENTIALLY DEVELOPING SAID IMAGES AFTER FORMATION THEREOF WITH A LIQUID DEVELOPER, EACH LIQUID DEVELOPER INCLUDING MARKING ELEMENTS DISPERSED IN AN ELECTRICALLY INSULATING SUSPENSION MEDIUM, SAID MARKING ELEMENTS OF EACH DEVELOPER INCLUDING A LIQUID RESIN MATERIAL FOR SUBSTANTIALLY ADHERING TO SAID SURFACE UPON REMOVAL OF SAID SUSPENSION MEDIUM, THE SUSPENSION MEDIUM OF EACH SAID DEVELOPER BEING SUBSTANTIALLY FREE OF RESIN MATERIAL OTHER THAN THAT ASSOCIATED WITH THE SAID MARTKING ELEMENTS SO THAT RESIN MATERIAL FROM THE SAID DEVELOPER IS DEPOSITED ESSENTIALLY ONLY WHERE SAID MARKING ELEMENTS ARE DEPOSITED, REMOVING THE SUSPENSION MEDIUM ADHERING TO SAID IMAGE BEARING MEMBER AFTER EACH DEVELOPMENT OPERATION TO CAUSE SUBSTANTIALLY PERMANENT ADHESION OF THE MARKING ELEMENTS DEPOSITED DURING THE SAID DEVELOPMENT OPERATION, AND DRYING SAID IMAGE BEARING MEMBERS AFTER THE LAST DEVELOPMENT OPERATION.
Claim 2
Dependent Claim 161 words
A PROCESS FOR SEQUENTIALLY FORMING A PLURALITY OF IMAGES ON AN IMAGE BEARING MEMBER INCLUDING AN IMAGE BEARING SURFACE COMPRISING THE STEPS OF SEQUENTIALLY FORMING A SERIES OF ELECTROSTATIC LATENT IMAGES ON SAID SURFACE, SEQUENTIALLY DEVELOPING SAID IMAGES AFTER FORMATION THEREOF WITH A LIQUID DEVELOPER, EACH LIQUID DEVELOPER INCLUDING MARKING ELEMENTS DISPERSED IN AN ELECTRICALLY INSULATING SUSPENSION MEDIUM, SAID MARKING ELEMENTS OF EACH DEVELOPER INCLUDING A LIQUID RESIN MATERIAL FOR SUBSTANTIALLY ADHERING TO SAID SURFACE UPON REMOVAL OF SAID SUSPENSION MEDIUM, THE SUSPENSION MEDIUM OF EACH SAID DEVELOPER BEING SUBSTANTIALLY FREE OF RESIN MATERIAL OTHER THAN THAT ASSOCIATED WITH THE SAID MARTKING ELEMENTS SO THAT RESIN MATERIAL FROM THE SAID DEVELOPER IS DEPOSITED ESSENTIALLY ONLY WHERE SAID MARKING ELEMENTS ARE DEPOSITED, REMOVING THE SUSPENSION MEDIUM ADHERING TO SAID IMAGE BEARING MEMBER AFTER EACH DEVELOPMENT OPERATION TO CAUSE SUBSTANTIALLY PERMANENT ADHESION OF THE MARKING ELEMENTS DEPOSITED DURING THE SAID DEVELOPMENT OPERATION, AND DRYING SAID IMAGE BEARING MEMBERS AFTER THE LAST DEVELOPMENT OPERATION.

References Cited (Backward Citations)

US2676100A Cited
US3001881A Cited
US2907674A Cited
US2832311A Cited
US2961921A Cited
US2892446A Cited
US3055266A Cited
US3105425A Cited
US3227549A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1970-01-30 1970-08-01 1971-01-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1974-01-30 1974-08-01 1975-01-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1978-01-30 1978-08-01 1979-01-31 $7700.00 Window Closed / Lapsed

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