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Class Information
Number: 402/22
Name: Binder device releasably engaging aperture or notch of sheet > Resilient sheet retainer requiring deflection for sheet removal > Releasably attached to keeper > One end permanently secured
Description: Device wherein the sheet retainer is fixed or pivotally attached at one end thereof to a body, the end remote from such fixed or pivotally attached end being disengageably held by the keeper.










Sub-classes under this class:

Class Number Class Name Patents
402/23 On discrete hinge pin 3


Patents under this class:

Patent Number Title Of Patent Date Issued
7798737 Collapsible ring binder and uses thereof Sep. 21, 2010
7794169 Bookbinding apparatus Sep. 14, 2010
7736081 Collapsible ring binder and uses thereof Jun. 15, 2010
7665924 Back plate and file cover for ring binder Feb. 23, 2010
6796738 Loop-type binder for documents Sep. 28, 2004
6241087 Compact disc storage device with locating projections Jun. 5, 2001
6086280 Reusable binding system and method Jul. 11, 2000
5827003 Ring binder with alignment blade tongues Oct. 27, 1998
5618122 Molded plastic one-piece loose-leaf binder ring structure Apr. 8, 1997
5184046 Circular waveguide plasma microwave sterilizer apparatus Feb. 2, 1993
4878776 Binder for telephone directories and the like Nov. 7, 1989
4784507 Filing device for layers of sheets Nov. 15, 1988
4761091 Binding device Aug. 2, 1988
4693624 Binding mechanism for perforated papers Sep. 15, 1987
4661006 File Apr. 28, 1987
4577985 Ring binder Mar. 25, 1986
4375925 Book binding Mar. 8, 1983
4264228 Composite looseleaf mechanism Apr. 28, 1981
4261664 One-piece report binder Apr. 14, 1981
4200404 Loose leaf binders Apr. 29, 1980
4192620 Loose leaf binder Mar. 11, 1980
4000951 Loose leaf binders Jan. 4, 1977
3994606 Loose leaf page fastener Nov. 30, 1976
3950107 Binder ring Apr. 13, 1976











 
 
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