v3.22.2.2
Statements of Cash Flows (Unaudited) - USD ($)
3 Months Ended
Oct. 31, 2022
Oct. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES    
Net income (loss) $ (118,921) $ 144,156
Adjustments to reconcile net income (loss) to net cash used in used in operating activities    
Inventory impairment 47,356 39
Impairment of patents 3,725 0
Gain on asset disposal 0 (194,853)
Depreciation 3,464 23,316
Changes in operating assets and liabilities    
Decrease in inventory 563 0
Decrease in accounts receivable 2,261 1,227
(Decrease) increase in prepaid expenses and other current assets 8,717 7,059
(Decrease) increase in accounts payable and accrued expenses 14,662 (2,584)
Operating lease liabilities (312) 0
Cash provided by (used in) operating activities (38,484) (21,640)
CASH FLOWS FROM INVESTING ACTIVITIES    
Cash used to acquire patents (2,700) (2,600)
Cash used in investing activities (2,700) (2,600)
CASH FLOWS FROM FINANCING ACTIVITIES    
Proceeds form SBA Payroll Protection Plan 0 (10,000)
Cash flows provided by financing activities 0 (10,000)
NET (DECREASE) INCREASE IN CASH (41,184) (34,240)
Cash at beginning of period 572,972 94,282
Cash at end of period $ 531,787 $ 60,041