Method of making a powder coated protected prong file fastener

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United States of America Patent

PATENT NO 9839937
SERIAL NO

14338791

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A prong style file fastener, and method of manufacturer, is disclosed which has a protective element to prevent damage to paper documents and personal injury. In one embodiment, the prongs of the fastener are covered with a powder coating which is melted thereon. In the case of the powdercoat covering, the production line uses a cam drive sprocket retractor system to release the line onto a takeup.

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Patent Owner(s)

Patent OwnerAddress
SMEAD MANUFACTURING COMPANYHASTINGS MINNESOTA 55033

International Classification(s)

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  • 2014 Application Filing Year
  • B05D Class
  • 1412 Applications Filed
  • 1025 Patents Issued To-Date
  • 72.60 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20142015201620172018201920202021202220230255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gilbertson, David J Hastings, US 12 37
Halfen, Marvin J Hastings, US 10 13
Lindelof, Harold Peter Eden Prairie, US 8 13

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Patent Citation Ranking

  • 0 Citation Count
  • B05D Class
  • 0 % this patent is cited more than
  • 8 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges67111729436168511401 - 1011 - 2021 - 3031 - 4041 - 5051 - 6071 - 8091 - 100100 +01002003004005006007008009001000110012001300

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