US3301675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic photographic process of making multi-colored prints
Assignee: Harris Graphics Corp
•
Filing: 1965-02-18
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Granted: 1967-01-31
•
Expires: 1985-02-18
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.
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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) | 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 |