Let's say there are two items. Item A and Item B.
Item A and Item B are similar, but not identical.
One of my claim step is worded like this at the moment.
Wherein the copying step uses item A
I have provided enough details for the above step in the specification.
But an infringer can go like this.
Wherein the copying step uses item B
My drawing contains both Item A and Item B. But my specification never described the item B step.
If I don't claim the step that uses item 2, an infringer can get away with my invention and I may lose the doctrine of equivalents argument due to prosecution history estoppel. [I didn't know anything about the prosecution history estoppel when I draft my specification.]
So Can I claim something that's not described in detail, but inherent?