Arkansas Patents, Inc.

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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Expired/Abandoned/Withdrawn Patents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
5050582 Fluid heating apparatus and process particularly suitable for a deep fat fryerExpiredJul 23, 90Sep 24, 91[F24D]
4780076 Power burnerExpiredDec 01, 86Oct 25, 88[F23C]
4651712 Pulsing combustionExpiredJun 17, 86Mar 24, 87[F23C]
4637792 Pulsing combustionExpiredOct 11, 85Jan 20, 87[F23C]
4569310 Pulsing combustionExpiredOct 30, 84Feb 11, 86[F22B]
4488865 Pulsing combustionExpiredMay 26, 82Dec 18, 84[F23C]
4480985 Pulsing combustionExpiredFeb 25, 82Nov 06, 84[F23C]
4479484 Pulsing combustionExpiredDec 22, 80Oct 30, 84[F24H]

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