U.S.D. Corp.

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Patent Activity in the Last 10 Years

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
D303440 Regulator mouthpieceExpiredAug 24, 87Sep 12, 89[]
4862903 Breathing mouthpiece for contacting upper palate and lower jaw of user's mouthExpiredOct 09, 87Sep 05, 89[A61F]
D302393 Diving meterExpiredDec 23, 86Jul 25, 89[]
D300340 Buoyancy compensator with an adjustable strapExpiredDec 23, 86Mar 21, 89[]
4809550 Digital diving meterExpiredDec 23, 86Mar 07, 89[G01F]
4810134 Single walled diver's buoyancy compensatorExpiredApr 13, 87Mar 07, 89[B63C]
D299286 Diver's buoyancy compensator backpack supportExpiredAug 26, 85Jan 10, 89[]
4778307 Buoyancy compensator with an adjustable strapExpiredDec 23, 86Oct 18, 88[B63C]
D296919 Adjustable diver's beltExpiredOct 02, 85Jul 26, 88[]
4694772 Diver's buoyancy compensator beltExpiredJun 17, 85Sep 22, 87[B63C]
4690314 Buoyancy compensator insertable backpackExpiredAug 26, 85Sep 01, 87[A45F]
4683881 Breathing regulator mouthpieceExpiredOct 30, 85Aug 04, 87[A62B]
D289505 Two instrument dive consoleExpiredJul 24, 84Apr 28, 87[]
D289384 Three instrument dive consoleExpiredJul 24, 84Apr 21, 87[]
4607398 Strap and retainer for a divers maskExpiredJul 24, 84Aug 26, 86[A61F]
D283740 First stage diving regulatorExpiredMar 21, 83May 06, 86[]
4561853 Buoyancy compensator, bladder, and process of manufactureExpiredApr 18, 83Dec 31, 85[B63C]
4523914 Conformable buoyancy compensatorExpiredJan 26, 83Jun 18, 85[B63C]
4498471 First and second stage regulator system for breathing gasExpiredSep 28, 82Feb 12, 85[A62B]
4449655 Combination backpack and gear bagExpiredOct 05, 81May 22, 84[A45F]

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