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Patent Gallery Index
US 33,034 1861
“Pencil”
US 215,521 1879
“Lead and Crayon Holder” 		 
US 1,745,226 1927
“Chuck Type Pencil”

US 1,848,224 1930
“Pencil Holder” 		 
J.S. Staedtler Mars Lumograph
GB 383,330 1930
“Improveed... Drawing Leads” 		Haack Sparstift
US 1,908,491 1931
“Lead Holder”
Haack Sparstift
GB 382,121 1931
“Improvements in... Pencil Holders” 		 
MIFA
US 2,063,637 1936
“Mechanical Pencil” 		 
Haack Sparstift
US 2,167,465 1939
“Pencil” 		 
Dixon Eldorado 163
US 2,170,867 1939
“Pencil” 		 
US 2,188,130 1939
“Pointing Device”
US 2,298,555 1939
“Mechanical Lead Pencil” 		 
US Design 119,006 1939
“Design for a Mechanical Pencil” 		 
US 2,262,649 1939
“Mechanical Pencil”
US 2,230,936 1940
“Pencil Sharpener”
US 2,242,458 1940
“Pencil Sharpener”
US 2,339,514 1941
“Indicating Device...”
US 2,332,258 1942
“Clutch Pencil”
US 2,455,019 1944
“Pencil Holder” 		 
US Design 144,474 1945
“Pencil Lead Holder”
US 2,557,646 1949
“Lead Pointer”
US 2,540,320 1949
“Pencil Pointer”
US 2,563,015 1949
“Pencil Sharpener”
US Design 166,161 1949
“Clutch Pencil or Similar Article”
A.W. Faber Castell 9600
US 2,726,637 1952
“Pencil”
A.W. Faber-Castell TK 9400
US 2,765,551 1952
“Pencil Label” 		 
US 2,785,657 1953
“Pencil-Lead Pointer”
US 2,751,700 1953
“Indicators”
US Design 174249 1953
“Mechanical Clutch Lead Pencil” 		 
US Design 174250 1954
“Mechanical Clutch Lead Pencil” 		 
US 2,857,883 1954
“Pencil Lead Sharpeners”
US 2,801,613 1955
“Lead Gripping Means for Lead Holders”
US 3,042,003 1956
“Pencil Pointer”
US 2,857,884 1956
“Pencil Lead Sharpening Device”
US 3,094,102 1959
“Lead Holder or the Like”
Great Britain 906,930 1960
“Improvements in ... Pencil Sharpeners”
US 3,097,628 1960
“Mechanical Pencil”
US 3,179,089 1963
“Mechanical Pencil Assembly”
rotring 1305
US 3,523,741 1965
“Pencil...Control Drop of the Refill Lead” 		 
US 3,398,773 1966
“Lead Sharpener”
Trupoint Automatic
US 3,450,482 1967
“Pencil Lead Holder with Fixed Length Feed” 		 
Pentel Mechanica
GB 1,273,716 1968
“Mechanical Pencil” 		New
Pentel Graph Pencil  
US 3,713,745 1968-73
"Push-Type Mechanical Pencil" 		New
Pentel Graph Pencil
US 3,627,434 1969
“Mechanical Pencil for Fine Leads” 		 
US 3,952,784 1975
“Pencil Pointer”
US 4,124,048 1977
“Lead Sharpener”
Staedtler Micromatic
US 4,538,934 1982
“Automatic Lead Advance...” 		New
US Design 324,069 1990
“Lead Holder”

Leadholder and Lead Pointer Patents

During the heyday of manual drafting, great energy was expended developing improved drawing equipment. In this section you will find patent information including links to patent drawings for leadholders and lead pointers. The patents are also cross referenced to items in the Galleries that are embodiments of the patents.

Note: The dates listed next to patents at left refer to the earliest date of application in an attempt to date the inventions as closely as possible to the time of conception rather than the time some bureaucrat finally got around to examining the application.

 
© 2001 to 2008 Dennis B. Smith 		^
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