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Expired European patentEurope

Process for forming a corrosion-resistant coating of a solid lubricant

EP 0069701 B1 · Applicant: Laboratoire Suisse de Recherches Horlogères

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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.

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Why it's free to use

  • Filed June 28, 1982 and granted September 18, 1985. A European patent lasts at most 20 years from filing, so its term ended June 28, 2002.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by December 28, 2007.
  • We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledJune 28, 1982
PublishedJanuary 12, 1983
GrantedSeptember 18, 1985
Term endedJune 28, 2002
Application numberEP 82810275
Classification (CPC)C23C28/00

Timeline

Timeline From EPO dates

1983198519871989199119931995199719992001Application filedJune 28, 1982PublishedJan 12, 1983Patent grantedSep 18, 1985Term endedJune 28, 2002

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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