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The ornamental design for a backpack frame, as shown and described. |
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FIG. 1 is a top, front and right side perspective view of a backpack frame showing my new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a left side elevational view thereof; and
FIG. 7 is a right side elevational view thereof.
| Patent | Priority | Assignee | Title |
| D744231, | Apr 14 2014 | Nathanial Brent, Erdmann | Adjustable pack frame |
| Patent | Priority | Assignee | Title |
| 3225985, | |||
| 3464607, | |||
| 3648907, | |||
| 3797718, | |||
| 3923217, | |||
| 4015759, | May 27 1975 | Backpack frame having shoulder and hip supports with flexible connection to hip support | |
| 4114788, | May 26 1976 | Front load carrying apparatus for backpacks | |
| 130181, |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
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