|
The ornamental design for a medical face mask, as shown. |
|||||||||||||||||
FIG. 1 is a front view of the medical face mask;
FIG. 2 is a side view thereof;
FIG. 3 is a front perspective view from below; and
FIG. 4 is a rear perspective view from below.
Parsons, David E. J., O'Reilly, Paul D., Crawford, Ronald H.
| Patent | Priority | Assignee | Title |
| 11253051, | Jun 26 2020 | SAVAGE BRANDS, INC DBA SAVAGE SHIELD | Protective case for face mask |
| 7753051, | Mar 17 2006 | King Systems Corporation | Face mask strap system |
| D945078, | Apr 03 2020 | SAVAGE BRANDS, INC DBA SAVAGE SHIELD | Face mask |
| D983460, | Jul 12 2019 | 4C AIR, INC | Transparent face mask |
| ER4409, |
| Patent | Priority | Assignee | Title |
| 3315674, | |||
| 3556097, | |||
| 213077, | |||
| 236033, | |||
| D247982, | Sep 10 1976 | Inhalation mask | |
| D249368, | Jul 21 1976 | FIGGIE INTERNATIONAL INC | Breathing face mask |
| D250131, | Oct 18 1976 | ALLIED HEALTHCARE PRODUCTS, INC | Breathing mask |
| D258994, | Mar 17 1978 | Breathing mask |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Oct 07 1982 | PARSONS, DAVID E J | VICKERS P L C | ASSIGNMENT OF ASSIGNORS INTEREST | 004057 | /0897 | |
| Oct 07 1982 | O REILLY, PAUL D | VICKERS P L C | ASSIGNMENT OF ASSIGNORS INTEREST | 004057 | /0897 | |
| Oct 07 1982 | CRAWFORD, RONALD H | VICKERS P L C | ASSIGNMENT OF ASSIGNORS INTEREST | 004057 | /0897 | |
| Jun 16 1993 | Vickers PLC | FLEXICARE MEDICAL LIMITED | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 008613 | /0220 |
| Date | Maintenance Fee Events |
| Date | Maintenance Schedule |