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Stock Options, Warrants and 401(k) Savings Plan (Tables)
12 Months Ended
Dec. 31, 2020
Share-based Payment Arrangement [Abstract]  
Outstanding Warrants

A summary of outstanding warrants follows:


 

 

 

 

 

 

 

 

Weighted

 

 

 

 

 

 

Exercise

 

 

Average

 

 

 

Number of

 

 

Price Range

 

 

Exercise

 

 

 

Shares

 

 

Per Share

 

 

Price

 

Outstanding at December 31, 2018 and December 31, 2019

 

691,365

 

 

$0.02

 

 

$0.02

 

Warrants exercised

 

550,000

 

 

 

 0.02

 

 

 

 0.02

 

Outstanding at December 31, 2020

 

141,365

 

 

 

$0.02

 

 

 

$0.02

 

 

 

 

 

 

 

 

 

 

 

 

 

Weighted average remaining contractual life (years)

 

.52

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Weighted

 

 

 

 

 

 

 

Exercise

 

 

 

Average

 

 

 

Number of

 

 

 

Price Range

 

 

 

Exercise

 

 

 

Shares

 

 

 

Per Share

 

 

 

Price

 

Exercisable warrants at year end:

 

 

 

 

 

 

 

 

 

 

 

 

2020

 

141,365

 

 

$0.02

 

 

$0.02

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Weighted average remaining contractual life (years)

 

.52