ATE54495T1 - Verfahren zum herstellen von fotokopiersicheren dokumenten, sowie fotokopierresistentes papier. - Google Patents

Verfahren zum herstellen von fotokopiersicheren dokumenten, sowie fotokopierresistentes papier.

Info

Publication number
ATE54495T1
ATE54495T1 AT82306493T AT82306493T ATE54495T1 AT E54495 T1 ATE54495 T1 AT E54495T1 AT 82306493 T AT82306493 T AT 82306493T AT 82306493 T AT82306493 T AT 82306493T AT E54495 T1 ATE54495 T1 AT E54495T1
Authority
AT
Austria
Prior art keywords
photocopy
producing
resistant paper
documents
safe
Prior art date
Application number
AT82306493T
Other languages
English (en)
Inventor
Norman A Gardner
Michael P Voticky
Original Assignee
Nocopi Int Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CA000378239A external-priority patent/CA1187914A/en
Application filed by Nocopi Int Inc filed Critical Nocopi Int Inc
Application granted granted Critical
Publication of ATE54495T1 publication Critical patent/ATE54495T1/de

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/08—Photoprinting; Processes and means for preventing photoprinting
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/04—Preventing copies being made of an original
    • G03G21/043—Preventing copies being made of an original by using an original which is not reproducible or only reproducible with a different appearence, e.g. originals with a photochromic layer or a colour background

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Credit Cards Or The Like (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Printing Methods (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Color Printing (AREA)
AT82306493T 1981-05-25 1982-12-06 Verfahren zum herstellen von fotokopiersicheren dokumenten, sowie fotokopierresistentes papier. ATE54495T1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CA000378239A CA1187914A (en) 1981-05-25 1981-05-25 Method of rendering documents resistant to photocopying, and anti-copying paper therefor
US06/443,819 US4522429A (en) 1981-05-25 1982-11-23 Method of rendering documents resistant to photocopying, and anti-copying paper and ink therefor
EP19820306493 EP0111597B1 (de) 1981-05-25 1982-12-06 Verfahren zum Herstellen von fotokopiersicheren Dokumenten, sowie fotokopierresistentes Papier
AU91302/82A AU555754B2 (en) 1981-05-25 1982-12-07 Photocopy resistant paper
US06/475,791 US4632429A (en) 1981-05-25 1983-03-16 Method of rendering documents resistant to photocopying and anti-copying paper therefor

Publications (1)

Publication Number Publication Date
ATE54495T1 true ATE54495T1 (de) 1990-07-15

Family

ID=46229985

Family Applications (1)

Application Number Title Priority Date Filing Date
AT82306493T ATE54495T1 (de) 1981-05-25 1982-12-06 Verfahren zum herstellen von fotokopiersicheren dokumenten, sowie fotokopierresistentes papier.

Country Status (4)

Country Link
JP (1) JPS59114566A (de)
AT (1) ATE54495T1 (de)
HK (1) HK10594A (de)
IN (1) IN161293B (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2385161A1 (fr) * 1977-02-08 1978-10-20 Burroughs Corp Moyen de protection de document et document ainsi realise
JPS5452538A (en) * 1977-10-04 1979-04-25 Fuji Xerox Co Ltd Transfer paper for preventing reecopying and production thereof
JPS5487742U (de) * 1977-12-05 1979-06-21
JPS5541434A (en) * 1978-09-20 1980-03-24 Konishiroku Photo Ind Co Ltd Retrofocus type wide angle lens
JPS576113A (en) * 1980-06-11 1982-01-13 Akira Kobayashi Ceiling hanging metals

Also Published As

Publication number Publication date
JPS59114566A (ja) 1984-07-02
JPH0458033B2 (de) 1992-09-16
IN161293B (de) 1987-11-07
HK10594A (en) 1994-02-09

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