Sorry, just not seeing it - the patent shows and describes a distinct bend in the inner tines, yours still looks to me like a well worn fork with tines slightly out of alignment. Would also want to see similar forks in a set, or any catalog reference, as indication that the 'improvement' was actually put into use by any maker. Find it interesting that the surname appears to 'Dungin' on the drawing rather than the 'Durgin' shown in the text - there was an 1859 patent for an ice cream freezer by a Brooklyn inventor (#23271) that was witnessed by 'C.A. Dungin', the signature appearing similar, and later fork patents citing this one (#54514) show the name as 'Dungin'. If the name is correctly 'Durgin', what was the relationship of the New Yorker Charles A. to the Durgins involved in silver manufacture?