Frequency inverter

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Information

Patent Grant
D358753

References
Source

Patent Number
D358,753
Date Filed
Thursday, July 21, 1994
30 years ago
Date Issued
Tuesday, May 30, 1995
29 years ago

Inventors
Original Assignees
- Hitachi, Ltd
Examiners
- Sincavage; Joel
Agents
- Antonelli, Terry, Stout & Kraus

US Classifications
- D13 - Equipment for production, distribution, or transformation of energy
Field of Search
- US
- D13 110
- D13 123
- D13 124
- D13 162
- 363 15
- 363 35
- 363 96
- 336 182
- 361 430
- 361 690
- 361 710
- 361 729
- 361 730
- 361 752
- 361 823
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a frequency inverter, as shown.

US Referenced Citations (7)

Number	Name	Date	Kind
D290694	Shimizu et al.	Jul 1987
D294565	Makinson et al.	Mar 1988
D304170	Kondo et al.	Oct 1989
D318845	Plumeret	Aug 1991
4620263	Ito	Oct 1986
4769557	Houf et al.	Sep 1988
4980801	Guinda et al.	Dec 1990

Foreign Referenced Citations (3)

Number	Date	Country
2543781	Oct 1984	FRX
3924161	Jan 1991	DEX
405250977	Sep 1993	JPX