Environmental heating and cooling; fluid handling and sanitary e – Fluid handling or treatment equipment – Fitting
Reissue Patent
2005-04-14
2008-11-25
Webster, Robin V (Department: 2911)
Environmental heating and cooling; fluid handling and sanitary e
Fluid handling or treatment equipment
Fitting
Reissue Patent
active
RE040577
CLAIM:
The ornamental design for a flexible tube having a variable stiffness bellows, as shown and described.
REFERENCES:
patent: 1547431 (1925-07-01), Mallory
patent: 3050087 (1962-08-01), Caplan
patent: D221078 (1971-07-01), Seckel et al.
patent: 3842865 (1974-10-01), Torricelli
patent: 5050087 (1991-09-01), Walrath et al.
patent: 6056018 (2000-05-01), Renaud
patent: D447792 (2001-09-01), Renaud
E. I. du Pont de Nemours and Company
Webster Robin V
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