Intangible Assets

12 Months Ended

Dec. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

4.  Intangible Assets

Intangible assets consisted of:	2013		2012
Patents	$	2,054,316	$	1,982,918
Trademarks		632,458		601,716
Pac-Kit Tradename, Customer List		1,500,000		1,500,000
C-Thru, Customer List		1,050,000		1,050,000
		5,236,774		5,134,634
accumulated amortization		1,164,877		894,233
	$	4,071,897	$	4,240,401

Amortization expense for patents and trademarks for the years ended December 31, 2013, and 2012 were $270,644 and $227,662, respectively. The estimated aggregate amortization expense for each of the next five succeeding years, calculated on a similar basis, is as follows: 2014 - $259,202; 2015 - $246,494; 2016 - $244,669; 2017 - $240,727; and 2018 - $234,715.