Headset-hardhat adapter
Read June 13, 1
U.S. patent number D248,158 [Application Number 05/714,621] was granted by the patent office on 1978-06-13 for headset-hardhat adapter. This patent grant is currently assigned to Northern Telecom Limited. Invention is credited to Clifford D. Read.
| United States Patent | D248,158 |
| Read | June 13, 1978 |
Headset-hardhat adapter
Claims
The ornamental design for a headset-hardhat adapter, substantially as shown.
| Inventors: | Read; Clifford D. (Ottawa, CA) |
|---|---|
| Assignee: | Northern Telecom Limited
(Montreal, CA) |
| Appl. No.: | 05/714,621 |
| Filed: | August 16, 1976 |
| Current U.S. Class: | D14/205 |
| Current International Class: | D1403 |
| Field of Search: | ;D14/65,36,37,32,94,67 ;179/156R,156A |
References Cited [Referenced By]
U.S. Patent Documents
| D239034 | March 1976 | Stilgenbauer |
| 3134861 | May 1964 | Dempsey et al. |
| 3629522 | April 1969 | Richards |
| 3787641 | January 1974 | Santori |
| 3889190 | June 1975 | Palmer |
| 3890475 | June 1975 | Denhart |
| 3902025 | August 1975 | Lewis |
Attorney, Agent or Firm: Mowle; John E.
Description
FIG. 1 is a front view of a headset-hardhat adapter, showing my new design;
FIG. 2 is a perspective view thereof;
FIG. 3 is a side view thereof;
FIG. 4 is an end view thereof; and
FIG. 5 is a rear view.
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