What exactly is protected under patent application US 2013/0001878 A1 (US 8,770,586 B2). I have built a similar product but it's fill mechanism is automatic in nature.
In reference to the design patent: USD 666,896 S1 Can a similar product be made without violating this patent? What exactly is patented? The loops? The look?
I'm not understanding this patent at all... It makes it sound like no one can create the type of Biofuel Cell described (which is very general) or use the methods stated to try and create a different ...
In reference to the patent: US 4,678,702 A What were improvements made to this patent later on?