September 8

In 1930, Scotch tape was developed by Richard G. Drew at 3M, St. Paul Minn. Originally, 3M only made sandpaper, and during testing Drew observed at a local auto bodyshop that auto painters had difficulty making clean dividing lines on two-color paint jobs. After two years of effort in the company's labs, he invented masking tape (1925), a tan paper tape with a light, pressure sensitive adhesive backing. Five years later, he invented Scotch Brand Cellulose Tape, the first waterproof, see-through, pressure-sensitive tape. Once marketed, the public found the tape had a wide range popular applications in mending, sealing and joining. These financial successes stimulated the company to increase product research and development.

Patent Organizations

http://www.ipaustralia.gov.au/

(AU) IP Australia (The Federal Government Agency Of Patents, Trade Marks And Designs)
http://www.azpat.org/

(AZ) Patent Office of Azerbaijan
http://www.basmp.gov.ba/

(BA) Patent Office of Bosnia and Hercegovina
http://mineco.fgov.be/opri-die.htm

(BE) Belgian Intellectuall Property Office
http://www.inpi.gov.br/

(BR) Brazilian Patent Office
http://www.boip.int/index.htm

(BX) The Benelux Office for Intellectual Property
http://belgospatent.org/

(BY) National Center of Intellectual Property of Republica of Belarus
http://www.opic.ic.gc.ca/eic/site/cipointernet-internetopic.nsf/eng/home

(CA) Canadian Intellectual Property Office
http://www.ige.ch/

(CH) Swiss Federal Institut of Intellectual Property
http://www.cntme.com/

(CN) State Intellectual Property Office of P.R.China