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12. Stockholders' Equity: Common Stock Purchase Warrant Transactions (Tables)
 3 Months Ended
Mar. 31, 2021
Tables/Schedules  
Common Stock Purchase Warrant Transactions

 

 

 

Number of

Warrants

 

Exercise Prices

Balance December 31, 2019

 

12,900,123

 

$0.18-0.22

Issued

 

5,600,027

 

$0.18-0.40

Expired

 

(10,816,789)

 

$0.20-0.22

Exercised

 

(1,708,334)

 

0.20

Balance December 31, 2020 and March 31, 2021

 

5,975,027

 

$0.18-0.40