| Schedule of intangible assets |
| |
|
|
|
May
2, 2021 |
|
| |
|
Estimated
Life |
|
Gross
Carrying Amount |
|
|
Accumulated
Amortization |
|
|
Net
carrying
amount |
|
| Patents |
|
10 Years |
|
$ |
2,495,408 |
|
|
$ |
(1,483,452 |
) |
|
$ |
1,011,956 |
|
| Trademarks |
|
3 Years |
|
|
1,270,111 |
|
|
|
(1,089,499 |
) |
|
|
180,612 |
|
| Other
intangibles |
|
5 Years |
|
|
839,737 |
|
|
|
(839,737 |
) |
|
|
- |
|
| Total |
|
|
|
$ |
4,605,256 |
|
|
$ |
(3,412,688 |
) |
|
$ |
1,192,568
|
|
| |
|
|
|
January
31, 2021 |
|
| |
|
Estimated
Life |
|
Gross
Carrying Amount |
|
|
Accumulated
Amortization |
|
|
Net
carrying
amount |
|
| Patents |
|
10 Years |
|
$ |
2,387,328 |
|
|
$ |
(1,128,997 |
) |
|
$ |
1,258,331 |
|
| Trademarks |
|
3 Years |
|
|
1,239,334 |
|
|
|
(980,633 |
) |
|
|
258,701 |
|
| Other
intangibles |
|
5 Years |
|
|
839,737 |
|
|
|
(839,737 |
) |
|
|
- |
|
| Total |
|
|
|
$ |
4,466,399 |
|
|
$ |
(2,949,367 |
) |
|
$ |
1,517,032
|
|
|