The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 29, 1980
Filed:
Jun. 16, 1978
Applicant:
Inventors:
Lawrence A Flor, Anoka, MN (US);
Kenneth R Kurttila, Grant Township, Washington County, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05C / ; B41L / ; B41N / ;
U.S. Cl.
CPC ...
428 43 ; 1011271 ; 430-5 ; 282 / ; 400544 ; 428914 ; 428523 ;
Abstract
A sheet suitable for making typewriter producible negatives to impart an identifying title to light-sensitive material which comprises an opaque sheet formed with a narrow rectangular area defined by spaced parallel perforations in the sheet affording removal of the sheet material from the rectangular area and a carbon ribbon secured to the sheet such that typing on the ribbon transfers the carbon to the removable sheet material in the rectangular area affording transparent areas in the ribbon defining the indicia desired for the title.