Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
Reexamination Certificate
2006-01-24
2006-01-24
Fulton, Christopher W. (Department: 2859)
Geometrical instruments
Indicator of direction of force traversing natural media
Level or plumb, terrestrial gravitation responsive
C033S451000
Reexamination Certificate
active
06988320
ABSTRACT:
A water or spirit level is composed of an elongated body, preferably of metal, at least one bubble mounted in the elongated body, and end caps, preferably of plastics material, at the end faces of the elongated body, wherein at least one outer surface of the elongated body constitutes a preferred measuring surface. At least one of the end caps is releasably connected to the level body such that the end cap can optionally be removed and once again replaced.
REFERENCES:
patent: 508762 (1893-11-01), Risse
patent: 945275 (1910-01-01), Heistad
patent: 1132318 (1915-03-01), Feder
patent: 1430904 (1922-10-01), Hunter
patent: 1690053 (1928-10-01), Charlton
patent: 2383166 (1945-08-01), Seiwell
patent: 2879606 (1959-03-01), Olivere
patent: 3003054 (1961-10-01), Hubbard
patent: 3104477 (1963-09-01), Edwill
patent: 3225451 (1965-12-01), Olexson
patent: 3648378 (1972-03-01), Thingstad et al.
patent: 4561798 (1985-12-01), Elcrin et al.
patent: 4928395 (1990-05-01), Good
patent: 4979310 (1990-12-01), Wright
patent: 5165650 (1992-11-01), Letizia
patent: 5199177 (1993-04-01), Hutchins et al.
patent: 5388338 (1995-02-01), Majors
patent: 5412876 (1995-05-01), Scheyer
patent: 5433011 (1995-07-01), Scarborough et al.
patent: 5479717 (1996-01-01), von Wedemeyer
patent: 5709034 (1998-01-01), Kohner
patent: 6418634 (2002-07-01), Szumer
patent: 6675490 (2004-01-01), Krehel et al.
patent: 398846 (1995-02-01), None
patent: 2080529 (1982-02-01), None
patent: 2190745 (1987-11-01), None
Kallabis Gabriel
Schaefer Wolfgang
Cohen Amy R.
Friedrich Kueffner
Stabila-Messgeräte Gustav Ullrich GmbH
LandOfFree
Level does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Level, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Level will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3526518