Shutter

Follow

Information

Patent Grant
D251390

References
Source

Patent Number
D251,390
Date Filed
Thursday, June 23, 1977
47 years ago
Date Issued
Tuesday, March 20, 1979
46 years ago

Inventors
- Lawrence B. Engman
Original Assignees
- Engmans, Inc.
Examiners
- Word; A. Hugo
Agents
- Zarley; Donald H.

US Classifications
- D25 - Building units and construction elements
Field of Search
- US
- D25 47
- D25 48
- D25 49
- D25 52
- 052 623
- 052 463
- 160 90
- 160 104
- 049 324
- 049 325
- 049 75
International Classifications
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a shutter, substantially as shown.

US Referenced Citations (2)

Number	Name	Date	Kind
D233230	Hashiba	Oct 1974
3599703	Mennuto	Aug 1971

Non-Patent Literature Citations (1)

Entry
Sweet's Architectural Catalog File, 1976, Section 8.3/Wa, p. 2, Louver Door lower right and p. 3, item W-6.