Grand Specialties Co. - Assigned Patents

Manufacturers Index - Grand Specialties Co.

Grand Specialties Co.
Chicago, IL, U.S.A.
Manufacturer Class: Metal Working Machinery

Patents

This page contains information on patents issued to this manufacturer.

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Key to Links for Patent Information

USPTO = U.S. Patent Office . Images of the actual patent can be viewed on the U.S. Patent Office web site but a special TIFF viewer must be installed with your browser in order properly work. More information on how to configure your computer to view these patents can be found at TIFF image Viewers for Patent Images.
DATAMP = Directory of American Tool And Machinery Patents . A sister site to VintageMachinery.org with information on patents related to machinery and tools. A much easier user interface than the USPTO's for finding information on machinery patents.

Patent Number	Date	Title	Name	City	Description
1,473,833	Nov. 13, 1923	Doorstop	Michael J. Sasgen	Chicago, IL
1,473,834	Nov. 13, 1923	Doorstop	Michael J. Sasgen	Chicago, IL
1,656,394	Jan. 17, 1928	Doorstop	Michael J. Sasgen	Chicago, IL
1,687,517	Oct. 16, 1928	Doorstop	Michael J. Sasgen	Chicago, IL
1,876,173	Sep. 06, 1932	Adjustable doorstop	Anthony M. Sasgen	Chicago, IL
2,012,731	Aug. 27, 1935	Overhead door holder	Michael J. Sasgen	Chicago, IL
2,374,899	May. 01, 1945	Clamp	Anthony M. Sasgen	Chicago, IL	The examples we have seen are marked with the patent number plus "Grand Clamp" and "Steel Alloy". They do not strongly resemble the patent image, looking more like a conventional C clamp with an additional small lever.
2,379,992	Jul. 10, 1945	Work supporting and finishing apparatus	Anthony M. Sasgen	Chicago, IL	"This invention relates to an apparatus for supporting and finishing a cast or otherwise formed work blank, and more particularly to an apparatus for supporting and finishing a C-shaped work blank such as the body member of a C-clamp..."
D143,096	Dec. 04, 1945	Design for a C-clamp	Anthony M. Sasgen	Chicago, IL
2,445,188	Jul. 13, 1948	Quick-clamping vise	Anthony M. Sasgen	Chicago, IL
2,450,303	Sep. 28, 1948	Clamping device of the vise type	Anthony M. Sasgen	Chicago, IL
2,461,687	Feb. 15, 1949	Welder's clamp	Fred P. Hopfeld	Elmwood Park, IL	This C clamp for arc welding has provision for attaching the ground electrode.
631,281	Oct. 31, 1949	Improvements in or relating to vises	Fred P. Hopfeld	Elmwood Park, IL	This is the British equivalent of US Patent 2,546,906. The British patent specification does not mention the inventors, it only names the assignee.
		Improvements in or relating to vises	Anthony M. Sasgen	Chicago, IL
2,490,923	Dec. 13, 1949	Quick action C-clamp	Anthony M. Sasgen	Chicago, IL
2,546,906	Mar. 27, 1951	Screw-actuated vise having releasable nut for quickly opening or closing the jaws	Fred P. Hopfeld	Elmwood Park, IL
		Screw-actuated vise having releasable nut for quickly opening or closing the jaws	Anthony M. Sasgen	Chicago, IL
2,560,131	Jul. 10, 1951	Hand truck with elevator platform	Anthony M. Sasgen	Chicago, IL
		Hand truck with elevator platform	Fred P. Hopfeld	Elmwood Park, IL
2,656,864	Oct. 27, 1953	Straight beam clamp with adjustable self-locking jaw	Fred P. Hopfeld	Elmwood Park, IL
2,708,048	May. 10, 1955	Handling equipment for barrels or the like	Fred P. Hopfeld	Elmwood Park, IL
2,905,347	Sep. 22, 1959	Drum handling lift truck	Fred P. Hopfeld	Elmwood Park, IL
2,948,363	Aug. 09, 1960	Telescoping elevators	Fred P. Hopfeld	Chicago, IL
3,052,323	Sep. 04, 1962	Lift truck	Fred P. Hopfeld	Elmwood Park, IL
3,216,599	Nov. 09, 1965	Lift truck with a detachable mast assembly, and a propelling and elevating control system	Fred P. Hopfeld	Elmwood Park, IL
3,360,078	Dec. 26, 1967	Lifts	Fred P. Hopfeld	Elmwood Park, IL
D242,985	Jan. 11, 1977	Doorstop	Anthony M. Sasgen	Villa Park, IL