US3332347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duplicating
Assignee: Xerox Corp
•
Filing: 1962-04-04
•
Granted: 1967-07-25
•
Expires: 1982-04-04
Abstract
No abstract record available.
Inventors
- 👤 Robert W Gundlach
- 👤 Vsevolod S Mihajlov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:30
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/28; G03G15/30; B; B41; B41L; B41L19/00; B41L19/003; B41M; B41M5/00; B41M5/025; B41M5/0253; B41M5/0256; G03G9/00; G03G9/08; G03G9/09; G03G9/0926; G03G9/0928; Y; Y10; Y10S; Y10S101/00; Y10S101/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
205 words
A METHOD OF IMAGE DUPLICATING COMPRISING THE STEPS OF: (A) FORMING AN ORIGINAL IMAGE ON A SHEET SUPPORT WITH AN IMAGE MARKING MATERIAL CONTAINING A VOLATILE COLOR REAGENT WHICH BECOMES VOLATILE AT A FIRST HEATED TEMPERATURE SIGNIFICANTLY ABOVE ORDINARY ROOM TEMPERATURE, AND A COLORANT WHICH DOES NOT BECOME VOLTATILE ABOVE SAID FIRST TEMPERATURE. (B) PLACING SAID ORIGINAL BETWEEN A PAIR OF OPPOSED MEMBERS ARRANGED WITH FACING SURFACES A FIRST SURFACE OF WHICH IS AT A HEATED TEMPERATURE SUFFICIENT TO VOLATIZE THE COLOR REAGENT FROM SAID ORIGINAL TO CONDENSE ONTO THE SECOND OF SAID SURFACES HAVING A NON-POROUS AREA CAPABLE OF RETAINING A RECEIVED QUANTITY OF SAID CONDENSED COLOR REAGENT; (C) AFTER SAID LAST RECITED STEP PLACING COPY SHEETS EACH COATED WITH A COLOR REACTION PARTNER OF THE VOLATIZED COLOR REAGENT OF SAID ORIGINAL SERIATIM BETWEEN THE SAID FURFACES TO EACH RECEIVE AGAINST THE COATING THEREOF A PORTION OF THE COLOR REAGENT REVOLATIZED FROM SAID SECOND SURFACES BY THE HEATING EFFECTS OF SAID FIRST SURFACE TO FORM ON EACH COPY SHEET A COPY OF SAID ORIGINAL; AND (D) AFTER FORMING A PREDETERMINED NUMBER OF COPIES BY SAID LAST RECITED STEP, REMOVING ANY REMAINING COLOR REAGENT FROM SAID SECOND SURFACE TO RENEW SAID SECOND SURFACE FOR REUSE.
Claim 2
Independent Claim
205 words
A METHOD OF IMAGE DUPLICATING COMPRISING THE STEPS OF: (A) FORMING AN ORIGINAL IMAGE ON A SHEET SUPPORT WITH AN IMAGE MARKING MATERIAL CONTAINING A VOLATILE COLOR REAGENT WHICH BECOMES VOLATILE AT A FIRST HEATED TEMPERATURE SIGNIFICANTLY ABOVE ORDINARY ROOM TEMPERATURE, AND A COLORANT WHICH DOES NOT BECOME VOLTATILE ABOVE SAID FIRST TEMPERATURE. (B) PLACING SAID ORIGINAL BETWEEN A PAIR OF OPPOSED MEMBERS ARRANGED WITH FACING SURFACES A FIRST SURFACE OF WHICH IS AT A HEATED TEMPERATURE SUFFICIENT TO VOLATIZE THE COLOR REAGENT FROM SAID ORIGINAL TO CONDENSE ONTO THE SECOND OF SAID SURFACES HAVING A NON-POROUS AREA CAPABLE OF RETAINING A RECEIVED QUANTITY OF SAID CONDENSED COLOR REAGENT; (C) AFTER SAID LAST RECITED STEP PLACING COPY SHEETS EACH COATED WITH A COLOR REACTION PARTNER OF THE VOLATIZED COLOR REAGENT OF SAID ORIGINAL SERIATIM BETWEEN THE SAID FURFACES TO EACH RECEIVE AGAINST THE COATING THEREOF A PORTION OF THE COLOR REAGENT REVOLATIZED FROM SAID SECOND SURFACES BY THE HEATING EFFECTS OF SAID FIRST SURFACE TO FORM ON EACH COPY SHEET A COPY OF SAID ORIGINAL; AND (D) AFTER FORMING A PREDETERMINED NUMBER OF COPIES BY SAID LAST RECITED STEP, REMOVING ANY REMAINING COLOR REAGENT FROM SAID SECOND SURFACE TO RENEW SAID SECOND SURFACE FOR REUSE.
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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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |