US2986466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color electrophotography
Assignee: Individual
•
Filing: 1955-12-06
•
Granted: 1961-05-30
•
Expires: 1975-12-06
Abstract
No abstract record available.
Inventors
- 👤 Edward K Kaprelian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:08
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/01; G03G15/0142; G03G15/0178; G03G15/0194; G03G2215/00; G03G2215/00172; G03G2215/00177; G03G2215/00181; G03G2215/00189; G03G2215/00206; G03G2215/00261; G03G2215/0027; G03G2215/00362; G03G2215/00443; G03G2215/00451; G03G2215/00455; G03G2215/01; G03G2215/0103; G03G2215/0119; G03G2215/20; G03G2215/207; G03G2215/2074; G03G2215/2077
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
239 words
A METHOD OF CONTINUOUSLY PRODUCING A STRIP OF ELECTROPHOTOGRAPHIC PRINTS IN NATURAL COLOR FROM A CONTINUOUSLY MOVING COLOR ORIGINAL THROUGH THREE-COLOR PRINTING TECHNIQUES COMPRISING THE STEPS OF PROJECTING THROUGH A COLOR SEPARATION FILTER A CONTINUOUSLY MOVING FIRST COLOR SEPARATION IMAGE, INDEPENDENTLY FORMING THROUGH A MASKING FILTER A CONTINUOUSLY MOVING FIRST COLOR MASKING IMAGE, COMBINING ON A FIRST CONTINUOUSLY MOVING ELECTROPHOTOGRAPHIC PLATE SURFACE SENSITIVE TO SAID FIRST COLOR SEPARATION IMAGE, SAID FIRST COLOR SEPARATION IMAGE AND SAID FIRST COLOR MASKING IMAGE IN REGISTRY TO PRODUCE A FIRST ELECTROSTATIC COLOR MASKED SEPARATION IMAGE DEVELOPING SAID FIRST ELECTROSTATIC COLOR MASKED SEPARATION IMAGE WITH A FIRST COLOR DEVELOPER TO PRODUCE A COLOR SEPARATION IMAGE HAVING A COLOR BEARING SUBSTRACTIVE RELATION TO SAID FIRST COLOR SEPARATION FILTER, TRANSFERRING SAID COLOR SEPARATION IMAGE TO A CONTINUOUSLY MOVING COLOR PRINT SUPPORT MATERIAL, PERMANENTLY FIXING SAID TRANSFERRED FIRST COLOR SEPARATION IMAGE TO SAID SUPPORT MATERIAL, REPEATING SAID COLOR SEPARATION AND COLOR MASKING STEPS FOR A SECOND SEPARATION COLOR THROUGH SEPARATION AND MASKING FILTERS FOR SAID SECOND COLOR TO PRODUCE A SECOND ELECTROSTATIC COLOR MASKED COLOR SEPARATION IMAGE ON A SECOND CONTINUOUSLY MOVING CHARGED ELECTROPHOTOGRAPHIC PLATE SURFACE SENSITIVE TO SAID SECOND MASKED COLOR SEPARATION IMAGE, DEVELOPING SAID SECOND ELECTROSTATIC COLOR MASKED SEPARATION IMAGE WITH A SECOND COLOR DEVELOPER TO PRODUCE A SECOND CONTINUOUSLY MOVING COLOR SEPARATION IMAGE HAVING A COLOR BEARING A SUBTRACTIVE RELATION TO SAID SECOND COLOR SEPARATION FILTER, TRANSFERRING SAID SECOND COLOR SEPARATION IMAGE ONTO SAID
Claim 2
Independent Claim
239 words
A METHOD OF CONTINUOUSLY PRODUCING A STRIP OF ELECTROPHOTOGRAPHIC PRINTS IN NATURAL COLOR FROM A CONTINUOUSLY MOVING COLOR ORIGINAL THROUGH THREE-COLOR PRINTING TECHNIQUES COMPRISING THE STEPS OF PROJECTING THROUGH A COLOR SEPARATION FILTER A CONTINUOUSLY MOVING FIRST COLOR SEPARATION IMAGE, INDEPENDENTLY FORMING THROUGH A MASKING FILTER A CONTINUOUSLY MOVING FIRST COLOR MASKING IMAGE, COMBINING ON A FIRST CONTINUOUSLY MOVING ELECTROPHOTOGRAPHIC PLATE SURFACE SENSITIVE TO SAID FIRST COLOR SEPARATION IMAGE, SAID FIRST COLOR SEPARATION IMAGE AND SAID FIRST COLOR MASKING IMAGE IN REGISTRY TO PRODUCE A FIRST ELECTROSTATIC COLOR MASKED SEPARATION IMAGE DEVELOPING SAID FIRST ELECTROSTATIC COLOR MASKED SEPARATION IMAGE WITH A FIRST COLOR DEVELOPER TO PRODUCE A COLOR SEPARATION IMAGE HAVING A COLOR BEARING SUBSTRACTIVE RELATION TO SAID FIRST COLOR SEPARATION FILTER, TRANSFERRING SAID COLOR SEPARATION IMAGE TO A CONTINUOUSLY MOVING COLOR PRINT SUPPORT MATERIAL, PERMANENTLY FIXING SAID TRANSFERRED FIRST COLOR SEPARATION IMAGE TO SAID SUPPORT MATERIAL, REPEATING SAID COLOR SEPARATION AND COLOR MASKING STEPS FOR A SECOND SEPARATION COLOR THROUGH SEPARATION AND MASKING FILTERS FOR SAID SECOND COLOR TO PRODUCE A SECOND ELECTROSTATIC COLOR MASKED COLOR SEPARATION IMAGE ON A SECOND CONTINUOUSLY MOVING CHARGED ELECTROPHOTOGRAPHIC PLATE SURFACE SENSITIVE TO SAID SECOND MASKED COLOR SEPARATION IMAGE, DEVELOPING SAID SECOND ELECTROSTATIC COLOR MASKED SEPARATION IMAGE WITH A SECOND COLOR DEVELOPER TO PRODUCE A SECOND CONTINUOUSLY MOVING COLOR SEPARATION IMAGE HAVING A COLOR BEARING A SUBTRACTIVE RELATION TO SAID SECOND COLOR SEPARATION FILTER, TRANSFERRING SAID SECOND COLOR SEPARATION IMAGE ONTO SAID
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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) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |