Back sack
United States Patent D458018
US Patent References:
/0688671.html
Nason - - 0688671
Carrying bag construction
Pollak et al. - - 3225806
Packsack with stiffener for shoulder straps
Gray - - 3254816
CONVERTIBLE SATCHEL AND KNAPSACK
Droeger - - 3802613
Back pack device
Achmeteli - - 4089447
/0688671.html
Nason - - 0688671
Carrying bag construction
Pollak et al. - - 3225806
Packsack with stiffener for shoulder straps
Gray - - 3254816
CONVERTIBLE SATCHEL AND KNAPSACK
Droeger - - 3802613
Back pack device
Achmeteli - - 4089447
Inventors:
Mentken, Robert (New York, NY)
Application Number:
D/118862
Publication Date:
06/04/2002
Filing Date:
02/17/2000
View Patent Images:
Export Citation:
Primary Class:
Other Classes:
D03/216
Field of Search:
224/604, 224/627, 224/644, D3/216, 224/601, 383/74, 206/315.91, 224/630, 224/583, 190/102, 224/651, 383/71, D3/217, D3/226, 224/614, 224/153
US Patent References:
| 4213549 | Waterproof storage bag and backpack | Hibbard | 224/601 | |
| 4273274 | Convertible handbag and backpack | Freistadt | 294/141 | |
| 4674664 | Backsack | Simon | 224/604 | |
| 4974709 | Commuter case | Furlow et al. | 190/102 | |
| 4988216 | Insulated container insertable into a backpack | Lyman | 383/74 | |
| D333565 | Rucksack | Imbert | D3/217 | |
| 5570828 | Disposable promotional back pack and method of fabricating same | Lewis | 224/627 | |
| 5577652 | Convertible backpack | Cooper | 224/578 | |
| 5653337 | Reversible tote bag | Cirigliano | 206/373 | |
| 5704528 | Multi-purpose valise | Faure | 224/583 | |
| D390003 | Bag | Ng | D3/234 | |
| D391755 | Umbrella case backpack | Grimm et al. | D3/11 | |
| 5957354 | Backsack | Mentken | 224/614 | |
| D415344 | Backpack with lighted message display | Leibowitz | D3/217 | |
| 5975392 | Backpack with harness for toy figure | Miller et al. | 224/651 | |
| D428249 | Backpack dispenser for beverage containers | Ash, Jr. | D3/217 | |
| 6112959 | Waterproof carrying bag and backpack | Townsend | 224/153 | |
| 6164509 | Ergonomic bookpack | Gausling et al. | 224/627 | |
| D439040 | Convertible zipper wallet | Vazquez | D3/233 |
Primary Examiner:
Murphy, Celia
Claims:
1. I claim the ornamental design for a back sack, as shown and described.
Description:
FIG. 1 is a front perspective view of a “back sack” showing my new design in a collapsed condition;
FIG. 2 is a front perspective view, shown expanded, and in an open position; and,
FIG. 3 is a rear perspective view, shown expanded, and in a closed position.