US3409438A - Photosensitive heat developable copysheet - Google Patents

Photosensitive heat developable copysheet Download PDF

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Publication number
US3409438A
US3409438A US30442263A US3409438A US 3409438 A US3409438 A US 3409438A US 30442263 A US30442263 A US 30442263A US 3409438 A US3409438 A US 3409438A
Authority
US
United States
Prior art keywords
silver
sheet
progenitor
light
copysheet
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
Inventor
Robert J Lokken
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
3M Co
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
Application filed by 3M Co filed Critical 3M Co
Priority to US30442263 priority Critical patent/US3409438A/en
Priority claimed from FR986160A external-priority patent/FR1411286A/en
Application granted granted Critical
Publication of US3409438A publication Critical patent/US3409438A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

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