Plastic spool for thread or the like

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Description

FIG. 1 is a perspective view of a plastic spool for thread or the like showing my new design;

FIG. 2 is a side elevation thereof; and

FIGS. 3 and 4 are end views of opposite ends of the spool.

Referenced Cited
U.S. Patent Documents
D231898 June 1974 Saxen
D240192 June 1976 Balmer
1353761 September 1920 Knoche
3099415 July 1963 Matsuura
3970267 July 20, 1976 Sheetz
Foreign Patent Documents
275,387 May 1951 CH
Patent History
Patent number: D244808
Type: Grant
Filed: Dec 15, 1975
Date of Patent: Jun 28, 1977
Assignee: The Risdon Manufacturing Company (Naugatuck, CT)
Inventor: Ernest F. Ubermuth (Watertown, CT)
Primary Examiner: Winifred E. Herrmann
Attorney: Merrill F. Steward
Application Number: 5/640,544
Classifications
Current U.S. Class: D 3/19A
International Classification: D1506;