W. & F. MFG., INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E05C BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS 135

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5290077 Multipoint door lock assemblyJan 14, 92Mar 01, 94[E05C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5373716 Multipoint lock assembly for a swinging doorExpiredOct 16, 92Dec 20, 94[E05B]
D324477 Door handle unitExpiredJul 01, 91Mar 10, 92[]
5092144 Door handle and lock assembly for sliding doorsExpiredJun 27, 90Mar 03, 92[E05B]
D319961 Combined door handle and lock unitExpiredApr 03, 89Sep 17, 91[]
D319769 Combined door handle and deadbolt unitExpiredApr 03, 89Sep 10, 91[]
D318783 Door handle unitExpiredApr 03, 89Aug 06, 91[]
D318214 Door handle unitExpiredApr 03, 89Jul 16, 91[]
D318215 Door handle unitExpiredApr 03, 89Jul 16, 91[]
4876866 Door latch and deadbolt assemblyExpiredAug 22, 88Oct 31, 89[E05B]
4807914 Window lock assemblyExpiredAug 18, 86Feb 28, 89[E05C]
4784417 Door latch and deadbolt assemblyExpiredFeb 09, 87Nov 15, 88[E05B]
D297805 Combined latch and deadbolt unitExpiredDec 20, 85Sep 27, 88[]
D295829 Combined latch and deadbolt unitExpiredDec 20, 85May 24, 88[]
4671089 Door latch and deadbolt assemblyExpiredJan 31, 86Jun 09, 87[E05B]
4480862 Latching and locking mechanism for sliding doorExpiredNov 27, 81Nov 06, 84[E05C]

Top Inventors for This Owner

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