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Intangible Assets | 12 Months Ended
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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.

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16373-109275 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16265-109275 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 44, 45, 46 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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