Chalk

Details Chalk Chalk

1995-02-08

1996-03-05

Thompson, Martie

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 41, D19 53, D19 54, D21 51, D 1127

Patent

active

D03676722

REFERENCES:
patent: D67193 (1925-05-01), Epstein
patent: D113876 (1939-03-01), Moure
patent: D220297 (1971-03-01), Tarmu
patent: D269444 (1983-06-01), Medebach
patent: D269723 (1983-07-01), Tovey
patent: D284980 (1986-08-01), Yoshida
patent: D306177 (1990-02-01), Park
patent: D318293 (1991-07-01), Flowers
patent: D351620 (1994-10-01), Chung
patent: 2430681 (1947-11-01), Johnson
patent: 4936585 (1990-06-01), Looney et al.
Pentech International, Inc., photos of sidewalk chalk on sale prior to Feb. 8, 1994.

Affiliated with

Also associated with

Rating

Chalk does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Chalk, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chalk will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1404649