Since concealed knives has been discussed let me see if I can get a couple of things clarified:
My understanding is that the blade is measured from the tip to the handle, regardless of how long the cutting edge is. That might make a difference because sometimes there is a half inch or so difference. If my method of measurement is wrong hopefully someone will point it out.
Based on the definition given in Nebraska law, it looks to me like a pencil or pen could be considered a concealed weapon. A screwdriver is a common weapon and certainly could be considered one. But does a pencil or pen have to be used as a weapon to be legally considered one? If it does, why does not the same thing apply to a knife with a blade longer than 3 1/12 inches?
If a knife with a blade shorter than 3 1/2" is used as a weapon or to threaten somebody, and was previously carried concealed, does it them become defined as having been a concealed weapon?
If a folding knife with a blade longer than 3 1/2" is carried in a pocket with the clip that is very common these days, does the clip and top of the knife showing make it not a concealed weapon? If a folding knife is carried in a sheath is it considered a weapon if the sheath is visible but the knife itself is not?