Patent Yard Sign in
Expired Canadian patentCanada

Impact-resisting anti-lacerative window glass units and a method of fitting such impact-resisting anti-lacerative window glass units

CA 1314801 C · Owner: Takeichi, Hideo · Inventors: Honda, Toshio; Segawa, Masashi; Tanuma, Itsuo

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

61-200,008 comb. IMPACT-RESISTING ANTI-LACERATIVE WINDOW GLASS UNITS AND A METHOD OF FITTING SUCH IMPACT-RESISTING ANTI-LACERATIVE WINDOW GLASS UNITS Abstract of the Disclosure, An impact-resisting anti-lacerative window glass unit or laminate of a sandwich structure is disclosed which comprises two exterior plate-like member made of a transparent organic polymer (A) and a transparent organic polymer (B) or a transparent inorganic material respectively, and multilayer structure intermediate films made of at least two kinds of polymers (C). The multilayer structure intermediate films are interposed between two exterior plate-like members. A method of fitting such an impact-resisting …

Read the whole patent

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

Why it's free to use

  • Granted March 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 23, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 27, 1987
GrantedMarch 23, 1993
Term endedMarch 23, 2010
Patent numberCA 1314801 C
Classification (IPC)B32B17/10 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedAug 27, 1987Patent grantedMarch 23, 1993Term endedMarch 23, 2010

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.