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Class Information
Number: 402/63
Name: Binder device releasably engaging aperture or notch of sheet > Sheet retainer with releasable keeper (e.g., hold down, etc.) > Keeper cooperating with retainer of varying cross-section > Notched or grooved retainer (e.g., screw threaded, etc.)
Description: Device wherein the variation in cross-section is in the form of a series of grooves or a continuous helical groove (i.e., threaded, etc.).










Patents under this class:

Patent Number Title Of Patent Date Issued
7806617 Document binding system Oct. 5, 2010
7300222 Rotatable locking mechanism for ring systems Nov. 27, 2007
7207740 Stacked paper fastener Apr. 24, 2007
7001096 Paper binder Feb. 21, 2006
6736563 Paper binder May. 18, 2004
6679376 MD, CD and magnetic disk box structure Jan. 20, 2004
6666609 Flip chart holder Dec. 23, 2003
6659676 Part recycle device of a document file Dec. 9, 2003
6565278 Leaf retaining means May. 20, 2003
6514000 Storage device Feb. 4, 2003
6361235 Device for binding together a stack of document sheets Mar. 26, 2002
6217246 Two-piece paper fastener having rounded sides Apr. 17, 2001
6200057 Storage device Mar. 13, 2001
6116804 Binder security lock Sep. 12, 2000
6099187 Storage device Aug. 8, 2000
5988925 Stacked paper fastener Nov. 23, 1999
5948494 Composite sheet and sheet stack Sep. 7, 1999
5690443 Adjustable, releasable binding fastener Nov. 25, 1997
5626432 Adjustable locking binder May. 6, 1997
5294226 Bolt binder Mar. 15, 1994
5265968 File clip Nov. 30, 1993
5257870 Paper retaining means Nov. 2, 1993
5234232 Bookbinding apparatus and method of binding sheets Aug. 10, 1993
5226360 Bundling device Jul. 13, 1993
5080398 Paper sheets binding system with dual orientation binding posts to resist multiple failure modes Jan. 14, 1992
4930927 Tamper-proof binder for photographs and the like Jun. 5, 1990
4743048 Multi-fold adjustable binder, book, and method May. 10, 1988
4625996 Bookbinding strips and method of binding books employing serrated studs Dec. 2, 1986
4579472 Devices for holding sheets Apr. 1, 1986
4529226 Desk pad Jul. 16, 1985
4453850 Support device for a binder system Jun. 12, 1984
4309046 Binding element Jan. 5, 1982
4305675 File fastener Dec. 15, 1981
4304499 Binder system, a binder system support device, and a binder cover Dec. 8, 1981
4202642 Loose-leaf binder utilizing stiff covers May. 13, 1980
4200404 Loose leaf binders Apr. 29, 1980
4180340 Binder post connection Dec. 25, 1979
4000951 Loose leaf binders Jan. 4, 1977
3970331 Binder element Jul. 20, 1976











 
 
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