Patent US3170395A successfully refreshed from Google Patents.
US3170395A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duplicating
Assignee: Xerox Corp
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Filing: 1963-10-07
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Granted: 1965-02-23
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Expires: 1983-10-07
Abstract
No abstract record available.
Inventors
- 👤 Robert W Gundlach
- 👤 Vsevolod S Mihajlov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:08
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: 4
Claim 1
Independent Claim
139 words
A DUPLICATING METHOD FOR PREPARING AND DUPLICATING A TWO-SIDED DOCUMENT COMPRISING: (A) APPLYING VISIBLE INTELLIGENCE TO EACH OF THE TWO SIDES OF AN ORGINAL SHEET USING A COLORED MATERIAL CONTAINING A HEAT VOLATIZABLE COLOR REACTIVE CHEMICAL; (B) POSITIONING SAID SHEET BETWEEN THE FACES OF TWO NON-POROUS MASTER MEMBERS; (C) APPLYING HEAT TO SAID SHEET SO THAT SAID COLOR REACTIVE CHEMICAL EVAPORATES AND TRANSFERS TO EACH OF THE SAID FACES; (D) REMOVING SAID SHEET FROM BETWEEN SAID TWO MASTER MEMBERS; (E) POSITIONING A SUBSTANTIALLY IMPERMEABLE COPY SHEET TREATED WITH A COLOR REACTION PARTNER FOR SAID COLOR REACTIVE CHEMICAL BETWEEN SAID FACES OF SAID TWO MASTER MEMBERS; (F) APPLYING HEAT TO SAID TWO MASTER MEMBERS SO THAT SAID COLOR REACTIVE CHEMICAL EVAPORATES AND TRANSFERS FROM SAID TWO MASTER MEMBERS TO SAID COPY SHEET FORMING AN INENSELY COLORED DUPLICATION OF SAID INTELLIGENCE.
Claim 2
Dependent Claim
139 words
A DUPLICATING METHOD FOR PREPARING AND DUPLICATING A TWO-SIDED DOCUMENT COMPRISING: (A) APPLYING VISIBLE INTELLIGENCE TO EACH OF THE TWO SIDES OF AN ORGINAL SHEET USING A COLORED MATERIAL CONTAINING A HEAT VOLATIZABLE COLOR REACTIVE CHEMICAL; (B) POSITIONING SAID SHEET BETWEEN THE FACES OF TWO NON-POROUS MASTER MEMBERS; (C) APPLYING HEAT TO SAID SHEET SO THAT SAID COLOR REACTIVE CHEMICAL EVAPORATES AND TRANSFERS TO EACH OF THE SAID FACES; (D) REMOVING SAID SHEET FROM BETWEEN SAID TWO MASTER MEMBERS; (E) POSITIONING A SUBSTANTIALLY IMPERMEABLE COPY SHEET TREATED WITH A COLOR REACTION PARTNER FOR SAID COLOR REACTIVE CHEMICAL BETWEEN SAID FACES OF SAID TWO MASTER MEMBERS; (F) APPLYING HEAT TO SAID TWO MASTER MEMBERS SO THAT SAID COLOR REACTIVE CHEMICAL EVAPORATES AND TRANSFERS FROM SAID TWO MASTER MEMBERS TO SAID COPY SHEET FORMING AN INENSELY COLORED DUPLICATION OF SAID INTELLIGENCE.
Claim 3
Dependent Claim
145 words
A DUPLICATING METHOD COMPRISING: (A) POSITIONING BETWEEN THE FACES OF TWO MASTER MEMBERS AN ORIGINAL SHEET BEARING IMAGES ON EACH OF ITS TWO SIDES, SAID IMAGES MADE WITH A COLORED MARKING MATERIAL CONTAINING A TRANSFERABLE COMPONENT; (B) TRANSFERRING AT LEAST A PORTION OF SAID MARKING MATERIAL FROM THE IMAGE ON EACH SIDE OF SAID ORIGINAL SHEET TO THE FACE OF THE MASTER MEMBER FACING IT; (C) REMOVING SAID ORIGINAL SHEET FROM BETWEEN SAID TWO MASTER MEMBERS; (D) POSITIONING A COPY SHEET BETWEEN SAID TWO MASTER MEMBERS WITH THEIR MARKING MATERIAL BEARING FACES TOWARD SAID COPY SHEET; AND, (E) RE-TRANSFERRING AT LEAST A PORTION OF SAID TRANSFERABLE MARKING MATERIAL FROMTHE FACE OF EACH OF SAID MASTER MEMBERS TO ONE OF THE OPPOSITE SIDES OF SAID COPY SHEET AND SEPARATING SAID COPY SHEET FROM SAID MASTER MEMBER WHEREBY A TWO-SIDED DUPLICATE OF SAID ORIGINAL SHEET IS OBTAINED.
Claim 4
Dependent Claim
145 words
A DUPLICATING METHOD COMPRISING: (A) POSITIONING BETWEEN THE FACES OF TWO MASTER MEMBERS AN ORIGINAL SHEET BEARING IMAGES ON EACH OF ITS TWO SIDES, SAID IMAGES MADE WITH A COLORED MARKING MATERIAL CONTAINING A TRANSFERABLE COMPONENT; (B) TRANSFERRING AT LEAST A PORTION OF SAID MARKING MATERIAL FROM THE IMAGE ON EACH SIDE OF SAID ORIGINAL SHEET TO THE FACE OF THE MASTER MEMBER FACING IT; (C) REMOVING SAID ORIGINAL SHEET FROM BETWEEN SAID TWO MASTER MEMBERS; (D) POSITIONING A COPY SHEET BETWEEN SAID TWO MASTER MEMBERS WITH THEIR MARKING MATERIAL BEARING FACES TOWARD SAID COPY SHEET; AND, (E) RE-TRANSFERRING AT LEAST A PORTION OF SAID TRANSFERABLE MARKING MATERIAL FROMTHE FACE OF EACH OF SAID MASTER MEMBERS TO ONE OF THE OPPOSITE SIDES OF SAID COPY SHEET AND SEPARATING SAID COPY SHEET FROM SAID MASTER MEMBER WHEREBY A TWO-SIDED DUPLICATE OF SAID ORIGINAL SHEET IS OBTAINED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |