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Class Information
Number: 256/11
Name: Fences > Top guarded
Description: Fences having special provision to prevent or hinder creatures from traveling or remaining upon the top of the fence.










Sub-classes under this class:

Class Number Class Name Patents
256/12 Unstable 31


Patents under this class:

Patent Number Title Of Patent Date Issued
8702068 Animal-resistant fence and method for assembling and using the same Apr. 22, 2014
8616531 Pivoting fencing apparatus and fencing system Dec. 31, 2013
8359791 Quick snap bird guard Jan. 29, 2013
8308141 Animal-resistant fence and method for assembling and using the same Nov. 13, 2012
8162292 Animal barrier device Apr. 24, 2012
7686283 High security gate assembly Mar. 30, 2010
7575225 Security fence cap Aug. 18, 2009
7562453 Confinement fence structure for climbing animals and its associated methods of construction and installation Jul. 21, 2009
7461833 Picket assembly for a post Dec. 9, 2008
7331568 Apparatus for use with coiled barrier material Feb. 19, 2008
7325787 Barrier Feb. 5, 2008
7243465 Branched spike bird deterrent Jul. 17, 2007
7032889 Anti-scaling device Apr. 25, 2006
6918214 Antiperch device for birds Jul. 19, 2005
6880811 Pond protection system Apr. 19, 2005
6782624 Modular barrier system for satisfying needs unique to a specific user Aug. 31, 2004
6698725 Slotted fence post cap Mar. 2, 2004
6546676 Deflection device for birds, and for pigeons in particular Apr. 15, 2003
6481696 Fence post top cap for trellis Nov. 19, 2002
6418674 Bird repellant method and system Jul. 16, 2002
6382596 Security fence May. 7, 2002
6206347 Juvenile security fence Mar. 27, 2001
6199831 Non-electric perimeter fence Mar. 13, 2001
6044595 Billboard netting system providing protection from birds Apr. 4, 2000
5974998 Apparatus for foiling bird landings Nov. 2, 1999
5713160 Retractable bird deterring device Feb. 3, 1998
5662313 Barb arm extension Sep. 2, 1997
5606830 Collapsible anti-bird perching device Mar. 4, 1997
5577710 Fence extension assembly Nov. 26, 1996
5461364 Intrusion detection device Oct. 24, 1995
5433029 Bird repellent apparatus for wires and the like Jul. 18, 1995
D357771 Anti-bird perching structure Apr. 25, 1995
5310163 Barriers May. 10, 1994
5267724 Fencing apparatus for containing cats Dec. 7, 1993
5143354 Animal retentive fence attachment Sep. 1, 1992
5139256 Ball game and net therefor Aug. 18, 1992
5062612 Security rail Nov. 5, 1991
4937988 Pigeon barrier Jul. 3, 1990
4832316 Wall security fixtures May. 23, 1989
4673166 Security fence Jun. 16, 1987
4603840 Fence support member Aug. 5, 1986
4602764 Barrier apparatus Jul. 29, 1986
4598906 Device for adjustably positioning a cross bar Jul. 8, 1986
4408748 Integral fence post and cap Oct. 11, 1983
4193583 Chain link fence extension Mar. 18, 1980
4159820 Fence post cap and barbed wire arm Jul. 3, 1979
4143857 Safety/privacy fence Mar. 13, 1979
4065103 Fence attachment Dec. 27, 1977
3972510 Multi-bladed upright for a fence Aug. 3, 1976











 
 
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