Quarterly report pursuant to Section 13 or 15(d)

6. STOCK OPTIONS AND WARRANTS (Details - Warrants by exercise price)

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6. STOCK OPTIONS AND WARRANTS (Details - Warrants by exercise price)
3 Months Ended
Jul. 31, 2016
$ / shares
shares
$0.075, $0.11, $0.12, $0.18 and $0.25 [Member]  
Number of Warrants exercisable 84,969,908
Weighted average remaining contractual term 2 years 6 months 18 days
Weighted average exercise price exercisable | $ / shares $ .16
Five Year Term $0.075 [Member]  
Number of Warrants exercisable 1,056,000
Weighted average remaining contractual term 2 years 3 months 18 days
Five Year Term $0.12 [Member]  
Number of Warrants exercisable 35,347,508
Weighted average remaining contractual term 1 year 2 months 9 days
Five Year Term $0.18 [Member]  
Number of Warrants exercisable 19,811,200
Weighted average remaining contractual term 1 year 5 months 1 day
Five Year Term $0.25 [Member]  
Number of Warrants exercisable 18,755,200
Weighted average remaining contractual term 1 year 5 months 5 days
Five Year Term $0.11 [Member]  
Number of Warrants exercisable 10,000,000
Weighted average remaining contractual term 3 years 7 months 24 days