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Patent
   D242871
Priority
Dec 23 1974
Filed
Jun 19 1975
Issued
Dec 28 1976
Expiry
Dec 28 1990
Inventors
Magnusson,…
Assg.orig
Atlas Copc…
Assg.curr
Atlas Copc…
Entity
unknown
Referenced by
4
References
1
Maint.:
n/a
The ornamental design for hammer piston for valveless pneumatic impact device, as shown.

FIG. 1 is a perspective front view of a hammer piston for valveless pneumatic impact device; and

FIG. 2 is a rear perspective view thereof.
INVENTORS:

Magnusson, Karl August Valdemar

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D378655, Jan 17 1995 Power driven golf spike wrench
D410367, May 05 1998 GOLF YEAR ROUND, INC ; DOUGLAS G BELT D B A COMPASS GOLF Golf spike removal tool
D530729, May 27 2005 BANNER AMERICAN PRODUCTS, INC Tool-holding adapter
D534558, May 27 2005 BANNER AMERICAN PRODUCTS, INC Tool-holding adapter
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
2694383,
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jun 19 1975Atlas Copco Aktiebolag(assignment on the face of the patent)
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
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