Gas delivery mask
Bellm September 4, 1
U.S. patent number D310,431 [Application Number 07/077,180] was granted by the patent office on 1990-09-04 for gas delivery mask. This patent grant is currently assigned to Lifeline Limited. Invention is credited to Howard G. Bellm.
| United States Patent | D310,431 |
| Bellm | September 4, 1990 |
Gas delivery mask
Claims
The ornamental design for a gas delivery mask, as shown and described.
| Inventors: | Bellm; Howard G. (The Priory, GB3) |
|---|---|
| Assignee: | Lifeline Limited (Vale,
GB1) |
| Appl. No.: | 07/077,180 |
| Filed: | July 24, 1987 |
Foreign Application Priority Data
| Jan 30, 1987 [GB] | 1039627 | |||
| Current U.S. Class: | D24/110.4; D24/110.1 |
| Field of Search: | ;D29/7-10,12,15-18 ;128/205.25,206.12,206.15,206.17,206.19,206.21,206.28,207.17 |
References Cited [Referenced By]
U.S. Patent Documents
| D168311 | December 1952 | Lewis |
| D250131 | October 1978 | Lewis et al. |
| D262322 | December 1981 | Mizerak |
| D294410 | February 1988 | Montesi |
| 4723542 | February 1988 | Giffard |
Assistant Examiner: McInroy; Ruth
Attorney, Agent or Firm: Fliesler, Dubb Meyer & Lovejoy
Description
FIG. 1 is a top, front and left side perspective view of a gas delivery mask showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof; and
FIG. 6 is a rear elevational view thereof.
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