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:
Jan. 30, 1979
Filed:
Aug. 11, 1977
Applicant:
Inventor:
Martin Klein, Salem, NH (US);
Assignee:
Klein Associates, Inc., Salem, NH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
346165 ;
Abstract
This disclosure is concerned with adapting helical electrode-grounding electrode signal recording apparatus, normally suitable for wet paper signal recording, alternatively to operate with dry coated recording paper of the type previously recordable upon by point stylii and the like, through a combination of novel signal feeding circuits, electrode shaping, paper orientation and electrode pressure.
Klein, Martin. (1979). Process and apparatus for compatible wet and dry paper signal recording (U.S. Patent No. 4137538). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4137538
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile