Review the Incandescent Lamp Case.

What if Sawyer & Mann had disclosed a "common principle" - i.e., what if a person skilled in the art would have realized, looking at the patent, how to recognize which species of carbonized fibrous / textile material would have worked as an incandescent filament?

• Could they claim it?
• Why or why not?

Are any of three claims discussed in the case supported by the written disclosure discussed in the case?

• Which one(s)?
• Why or why not?