Patent
   D554550
Priority
Jan 17 2005
Filed
Jul 14 2005
Issued
Nov 06 2007
Expiry
Nov 06 2021
Assg.orig
Entity
unknown
0
4
n/a
The ornamental design for a nitrogen extractor, as shown and described.

FIG. 1 is a perspective view of a nitrogen extractor;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

Mochizuki, Toshikazu

Patent Priority Assignee Title
Patent Priority Assignee Title
5224350, May 11 1992 Advanced Extraction Technologies, Inc. Process for recovering helium from a gas stream
5599398, Aug 09 1995 Process and machine for cleaning parts
20050095177,
20050247311,
//
Executed onAssignorAssigneeConveyanceFrameReelDoc
Jul 14 2005Hakko Corporation(assignment on the face of the patent)
Jul 14 2005MOCHIZUKI, TOSHIKAZUHakko CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0167860231 pdf
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule