kind of a b.s. move to try to trademark something that's over 20 years old at this point.
A BS move? That's something Spyderco's usually not mentioned with. They go out of their way to give credit when they use other's innivations like calling the framelock the Reeve integral lock while others make up their own names for it like 'monolock'. They also honor others' proprietary technologies and make a concious effort to not use things unique to another brand.
The axis and triad lock wilk eventually lose patent and many will jump on them like wolves. Not Spyderco. Not in 20 years or ever because they consider that a BS move. Besides what do other brands want with the Spyderhole anyway? Doesnt everyone who isn into Spydercos think it makes a knife ugly anyway?