Problem 12-2 Fields Laboratories holds a valuable patent (No. 758-6002-1A) on a precipitator that prevents certain types of air pollution. Fields does not manufacture or sell the products and processes it develops. Instead, it conducts research and develops products and processes which it patents, and then assigns the patents to manufacturers on a royalty basis. Occasionally it sells a patent. The history of Fields patent number 758-6002-1A is as follows. 2008-2000esarch conducned so devalbp pracipnator 368,000 87,800 47,600 Design 3nd coretruction of prototype March 2010 esting of models Jan 2011 Fees paid engineers and lawyers to prepare patent application patent grantod June 30,2011 Engineering acthwity necessary to advance the design of the 61,200 Now. 2012 Dec. 2013 Aprl 2014 Juy 2018 preciprator to the manufacturing stage Legal faea paid to suecasafully dafand pecpnarpaen Research ined modifying the design of the paterted preaprtator Legal teea pakd in unsuocosstul patan indringema t agans a 95,000 47,600 48,000 competifor