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Keystone Lamp Mfg. Corporation
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Slatington, PA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Non-rotatable telescoping support structure
Patent number
4,558,893
Issue date
Dec 17, 1985
Keystone Lamp Mfg. Corp.
James E. Shelly
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Electric lamp
Patent number
4,410,932
Issue date
Oct 18, 1983
Keystone Lamp Mfg. Corporation
Joseph Oster
F21 - LIGHTING
Information
Patent Grant
Collapsible lamp shade
Patent number
D246397
Issue date
Nov 15, 1977
Keystone Lamp Mfg. Corporation
Donald J. Booty
D48 -
Information
Patent Grant
Baseless lamp
Patent number
4,028,543
Issue date
Jun 7, 1977
Keystone Lamp Manufacturing Corporation
Joseph Oster
F21 - LIGHTING
Information
Patent Grant
Lamp support
Patent number
D243550
Issue date
Mar 1, 1977
Keystone Lamp Manufacturing Corporation
Joseph Oster
D48 -
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
73311502 - INSIGHT LAMP
Serial number
73311502
Registration number
1191627
Filing date
May 21, 1981
Keystone Lamp Mfg. Corporation
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes