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Browse by Category: Main > Firearms & Weapons
Class Information
Number: 42/76.01
Name: Firearms > Barrels
Description: Device comprising a tubular structure through which a projectile is fired.










Sub-classes under this class:

Class Number Class Name Patents
42/77 Auxiliary 138
42/79 Choke devices 61
42/76.02 Materials or coatings 86
42/76.1 Method of making or modifying by metal working 32
42/78 Rifling or lining 72


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8701325 Duplex weapon system Apr. 22, 2014
8621976 Pistol having a barrel with synchronized cams Jan. 7, 2014
8595971 System and method for improving performance of a weapon barrel Dec. 3, 2013
8584391 Tactical telescoping shotgun Nov. 19, 2013
8516729 Reduced lethality gun Aug. 27, 2013
8490308 Small caliber muzzle loading blackpowder firearm adapted to fire a skirted projectile and method of inserting such a projectile in the bore of such a firearm Jul. 23, 2013
8312663 System and method for improving performance of a weapon barrel Nov. 20, 2012
8296987 Shotgun improvements Oct. 30, 2012
8291632 Projectile weapons Oct. 23, 2012
8281698 Rapid fire weapon with bidirectional interchangable barrel Oct. 9, 2012
8261480 Rigid composite structure with a superhard interior surface Sep. 11, 2012
8215221 Gun barrel Jul. 10, 2012
8161886 Short magnum shotshell cartridge and firing assembly Apr. 24, 2012
8091462 Firearm attachment locking system Jan. 10, 2012
8087344 Recoil operating pistol with nestable barrel and slide Jan. 3, 2012
8025003 Fluted firearm barrel Sep. 27, 2011
8020333 Cylinder with polycrystalline diamond interior Sep. 20, 2011
7997020 Gun barrel assembly Aug. 16, 2011
7987624 Flashless electric firearm and ammunition therefor Aug. 2, 2011
7963202 Superalloy mortar tube Jun. 21, 2011
7942090 Enhanced operating life blank fire attachment for gas-operated weapons May. 17, 2011
7866079 Modular barrel assembly Jan. 11, 2011
7810272 Gun barrel assembly Oct. 12, 2010
7775200 Barrel system for a paintball marker Aug. 17, 2010
7743965 Process to deposit a protective coating on the inner wall of a tube, and notably a gun barrel produced according to this process Jun. 29, 2010
7707763 Gun barrel assembly May. 4, 2010
7707761 Process for manufacturing double barrel shotgun barrels, and the resulting double barrels May. 4, 2010
7669358 Dynamic process for enhancing the wear resistance of ferrous articles Mar. 2, 2010
7658186 Multi-purposes mechanism for shooting apparatus Feb. 9, 2010
7658138 Practice barrels for use with practice cartridges Feb. 9, 2010
7650710 Article with enhanced resistance to thermochemical erosion, and method for its manufacture Jan. 26, 2010
7631454 Ball propelling machine Dec. 15, 2009
7631453 Interchangeable caliber semi-automatic rifle Dec. 15, 2009
7587853 System for fastening the barrel of a rifle having a replaceable barrel Sep. 15, 2009
7475636 Projectile with selectable kinetic energy Jan. 13, 2009
7451756 Paintball spin application method Nov. 18, 2008
7444775 Caliber convertible AR-15 upper receiver system Nov. 4, 2008
7380363 Replaceable blank firing barrel Jun. 3, 2008
7237705 Firing pin actuation and reset mechanism for a powder actuated setting tool and method Jul. 3, 2007
7210260 Firearm cartridge and case-less chamber May. 1, 2007
7191558 Dynamic process for enhancing the wear resistance of ferrous articles Mar. 20, 2007
7159353 Shotgun firearm Jan. 9, 2007
7086336 Firearm cartridge and case-less chamber Aug. 8, 2006
7076905 Pneumatic paintball marker, universal barrel, adaptor and insert combination Jul. 18, 2006
7036260 Method and system to prevent firing live rounds of ammunition during miles exercises May. 2, 2006
7013592 Guns with exterior surface configured barrels Mar. 21, 2006
6990764 Shotgun attachment Jan. 31, 2006
6931776 Apparatus for the section-wise autofrettage of gun barrels Aug. 23, 2005
6889462 Harmonic stabilizer system for rifle barrel and a rifle equipped therewith May. 10, 2005
6889464 Composite structural member May. 10, 2005

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