Quarterly report pursuant to Section 13 or 15(d)

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

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7. STOCK OPTIONS AND WARRANTS (Details - Warrants by exercise price)
9 Months Ended
Jan. 31, 2018
$ / shares
shares
Warrants [Member]  
Number of Warrants exercisable 48,850,197
Weighted average exercise price exercisable | $ / shares $ 0.12
$0.025, $0.03, $0.0575, $0.065. $0.075, $0.11, $0.12 and $0.18 [Member]  
Number of Warrants exercisable 48,850,197
Weighted average remaining contractual term 1 year 11 months 5 days
Weighted average exercise price exercisable | $ / shares $ .12
Five Year Term $0.12 [Member]  
Number of Warrants exercisable 25,841,188
Weighted average remaining contractual term 2 years 11 days
Five Year Term $0.18 [Member]  
Number of Warrants exercisable 8,536,880
Weighted average remaining contractual term 1 month 24 days
Five Year Term $0.11 [Member]  
Number of Warrants exercisable 10,000,000
Weighted average remaining contractual term 2 years 1 month 20 days
Five Year Term $0.065 [Member]  
Number of Warrants exercisable 769,231
Weighted average remaining contractual term 3 years 11 months 1 day
Five Year Term $0.0575 [Member]  
Number of Warrants exercisable 869,565
Weighted average remaining contractual term 4 years 2 months 5 days
Five Year Term $0.03 [Member]  
Number of Warrants exercisable 833,333
Weighted average remaining contractual term 4 years 3 months 22 days
Five Year Term $0.025 [Member]  
Number of Warrants exercisable 2,000,000
Weighted average remaining contractual term 4 years 5 months 8 days