Mounting ring for prefabricated fire wall lead-in

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Information

Patent Grant
D274904

References
Source

Patent Number
D274,904
Date Filed
Friday, September 5, 1980
44 years ago
Date Issued
Tuesday, July 31, 1984
40 years ago

Inventors
- Hans W. Siebert
- Bengt E. Legerius
Original Assignees
- Telefonaktiebolaget L M Ericcson (publ)
Examiners
- Lucas; Susan J.
Agents
- Roberts, Spiecens & Cohen

US Classifications
- D13 - Equipment for production, distribution, or transformation of energy
Field of Search
- US
- D13 12
- D13 13
- 174 48
- 174 68 R
- 174 68 C
- 174 73 R
- 174 74 R
- 174 74 A
- 174 76
- 174 77
- 174 82
- 174 93
- 174 98
- 174 101
- 052 221
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a mounting ring for prefabricated fire wall lead-in, as shown and described.

Priority Claims (1)

Number	Date	Country	Kind
80000535	Mar 1980	SEX

US Referenced Citations (4)

Number	Name	Date	Kind
3318476	Clark	May 1968
4050205	Ligda	Sep 1977
4243835	Ehrenfels	Jan 1981
4291195	Blomquist	Sep 1981