Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Household
Class Information
Number: 30/452
Name: Cutlery > Static pencil sharpener > Plural, sequentially engaged cutters
Description: Device including a plurality of successively employed cutters adapted to perform a plurality of shaping operations on a workpiece.










Patents under this class:

Patent Number Title Of Patent Date Issued
8016004 More silent and robust electric pencil sharpener Sep. 13, 2011
7654179 Crayon sharpener Feb. 2, 2010
7363714 Pencil sharpener Apr. 29, 2008
6948251 Pivoting sharpening device for pencil with non-circular cross section Sep. 27, 2005
6883697 Office tool assembly Apr. 26, 2005
6725549 Sliding sharpening device for pencil with non-circular cross section Apr. 27, 2004
6571480 Pencil sharpener for carpenter's pencil Jun. 3, 2003
6338198 Pencil sharpener Jan. 15, 2002
6065514 Compact handheld battery-operated cosmetic pencil sharpener May. 23, 2000
5894669 Sharpener for soft core pencils Apr. 20, 1999
5875555 Crayon sharpener assembly Mar. 2, 1999
5802948 Method for sharpening crayons Sep. 8, 1998
5699620 Apparatus for sharpening crayon marking instruments to form an improved arcuate safety marking tip Dec. 23, 1997
5167071 Cosmetic pencil sharpener Dec. 1, 1992
4918816 Pencil sharpener Apr. 24, 1990
4759129 Pencil sharpener Jul. 26, 1988
4744150 Container for tape ruler with manual pencil sharpener May. 17, 1988











 
 
  Recently Added Patents
Light emitting device
Method of fabricating a solar cell with a tunnel dielectric layer
Aperture stop
Dynamic facsimile transcoding in a unified messaging platform
Picture information coding device and coding method
Engineered enzymes with methionine-gamma-lyase enzymes and pharmacological preparations thereof
All-angle light emitting element having high heat dissipating efficiency
  Randomly Featured Patents
Method of aerodynamic production of liquid and solid disperse aerosols
Fuel cell and process for the production thereof
Panel branch for an artificial tree
Image production processing apparatus and structural data generating apparatus for generating structural data used in the image production processing apparatus
Locking device
Biopsy needle instrument
Holder for a rifle and kit for assembling holder
Accelerated rendering with temporally interleaved details
High-frequency transmitting/receiving apparatus, radar system having the same, and vehicle and small boat equipped with the radar system
Organic light emitting diode display and fabricating method thereof