Mark Identification

RPT

Serial Number

74286889

Filing Date

Jun 22, 1992

Trademark by

OTIS ENGINEERING CORPORATION

Classification Information

locking and sealing profiles for downhole tools for use in earth wells; namely, landing nipples

Metal Goods

locking and sealing profiles for downhole tools for use in earth wells; namely, lock mandrels, circulating devices with rotary or sliding sleeve valves, downhole safety valves, well packers, well plugs, wellheads and wellhead plugs

Machinery