VASSALLO RESEARCH & DEVELOPMENT CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL169

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D412409 Stackable chair with ribbed seatSep 28, 98Aug 03, 99[0601]
5145216 Pipe connection assemblyJul 23, 91Sep 08, 92[F16L]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6976434 Floating amphibious game tableExpiredJul 09, 03Dec 20, 05[A47B]
6142484 Composite multi-pressure gasketExpiredApr 15, 99Nov 07, 00[F16L]
5941021 Louver-type window and slat thereforExpiredNov 06, 96Aug 24, 99[E06B]
D330073 GasketExpiredAug 30, 91Oct 06, 92[]
D326710 GasketExpiredSep 24, 90Jun 02, 92[]
5099888 Impact protected, sealed, double-walled pipe bodyExpiredJun 04, 90Mar 31, 92[F16L, B29C]
4834430 Pipe socket insertExpiredJan 19, 88May 30, 89[F16L]
4826028 Gasket seating ringExpiredMay 27, 86May 02, 89[F16L, F16J]
4723905 Pipe belling apparatusExpiredMay 27, 86Feb 09, 88[B29C]
4693483 Composite gasket and fitting including sameExpiredJan 18, 85Sep 15, 87[F16J]
D291480 Tee pipe fittingExpiredJan 31, 85Aug 18, 87[]
D291481 Elbow pipe fittingExpiredFeb 11, 85Aug 18, 87[]
D291482 Pipe couplingExpiredMar 13, 85Aug 18, 87[]
D291483 Cross tee pipe fittingExpiredMar 13, 85Aug 18, 87[]
D289078 GasketExpiredOct 26, 84Mar 31, 87[]
4637618 Composite gasket and fitting including sameExpiredJul 13, 84Jan 20, 87[F16L, F16J]
4625383 Method for seating a gasket in a plastic pipe bell using a hard configured ringExpiredMar 18, 85Dec 02, 86[B29C]
4583772 Pipe fitting interlocking systemExpiredSep 18, 84Apr 22, 86[F16L]
4579354 GasketExpiredDec 05, 84Apr 01, 86[F16J]
4343480 Pipe bell and gasketExpiredJun 23, 80Aug 10, 82[F16J]

Top Inventors for This Owner

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