| 
 | The ornamental design for an ergonomic stool, as shown and described. | |||||||||||||||||
FIG. 1 is a front view of an ergonomic stool showing my new design;
FIG. 2 is a side view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a top front perspective view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc | 
| Jun 04 1999 | SoftView Computer Products Corp. | (assignment on the face of the patent) | / | |||
| Nov 22 1999 | DIFFRIENT, NIELS | SOFTVIEW COMPUTER PRODUCTS CORP | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 010443/ | 0481 | |
| Nov 04 2010 | Humanscale Corporation | BANK OF AMERICA, N A , AS AGENT | SECURITY AGREEMENT | 025321/ | 0222 | |
| Nov 04 2020 | BANK OF AMERICA, N A | Humanscale Corporation | RELEASE BY SECURED PARTY SEE DOCUMENT FOR DETAILS | 054356/ | 0903 | 
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