In the Knife world the question," is it legal in state x" is very common. We wanted to get the latest information to our customers. Please note we are not lawyers or pretend to know the laws. We just want to condense the information that we can find to give our customers a starting point.Connecticut
It is Illegal under the law to carry dangerous weapons which are (1) dirk knives, (2) switch knives, (3) stilettos, (4) any knife that has an automatic spring release device that releases a blade from the handle longer than one and one-half inches, and (5) any knife that has a blade with an edged portion four inches or longer.
You can carry any non federally restricted knife (i.e. switch blades, gravity knives and butterfly knives) unconcealed, if you have a concealed carry permit then you can carry up to a 3.9" folder concealed, 4" folders can't be concealed.
NJ State Law basically says you need a purpose to carry whatever knife you choose to carry, and self defense doesn't count. As long as you can communicate a reason for having a certain knife.There is no minimum/maximum length. The only things specifically prohibited are gravity, butterfly, and automatic knives. Assisted openers are fine.New York
In New York City, open view carry of any knife is prohibited, unless being used for a lawful purpose under certain exceptions including “when such knife (a) is being used for or transported immediately to or from a place where it is used for hunting, fishing, camping, hiking, picnicking or any employment, trade or occupation customarily requiring the use of such knife;” Also, it is unlawful to possess a knife with a blade 4” or more in any public place, street or park.
In New York State It is illegal to own a gravity knife, switchblade, pilum ballistic knife, cane sword, or metal knuckle knife in New York.It is legal to possess a switchblade or gravity knife, if using it for hunting, fishing, or trapping, as long as the person possessing it has a valid hunting and/or fishing license.It is illegal to carry a dirk, dagger, or stiletto with the intent of using it unlawfully against another.Ohio
Unlike Ohio’s gun laws, knife laws can vary from town to town. The law regarding carrying and using knives is fairly short in Ohio, but it has an effect on cases where knives are displayed or used. Almost every town has its own ordinances regarding possession, carrying and using knives.Pennsylvania
It is illegal to own or carry a dagger, sword cane, any automatic knife, or any implement for the infliction of bodily injury, which serves no common lawful purpose. It is legal to open or conceal carry any other type of knife in Pennsylvania.