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:
Jul. 04, 1978
Filed:
Jun. 06, 1975
Applicant:
Inventor:
Wendell J Manske, Birchwood Village, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, Saint Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
G01W / ;
U.S. Cl.
CPC ...
73335 ;
Abstract
Humidity indicating method and device suitable for visibly indicating exposure to a selected humidity level or for indicating a humidity-time history. The device comprises in combination a deliquescent compound, a liquid absorbent wick, and an indicating means. The change in properties of deliquescent compounds are employed to indicate a particular humidity level or a humidity-time history. Preferred methods of making humidity indicating devices are described.
Manske, Wendell. (1978). Humidity indicating method and device (U.S. Patent No. 4098120). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4098120
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile