Appeal 2007-1400
Reexamination Control 90/006,825
Patent 6,457,239 B1
33. According to Villwock, the knife may be removed by sliding it out of
the sheath or by pushing the knife blade 76 against the front wall 72 to open
it to the position shown in Figure 7. (Villwock at 4: 10–18.)
34. Villwock discloses that the invented article containment devices, such
as holsters and sheaths, may be formed of any flexible or resilient material,
including leather or plastics. (Villwock at 2: 23–27.)
35. Villwock notes that the rear wall 75 includes an extension 80 that is
adapted to receive a belt. (Villwock at 3: 55–4:2.)
Eldridge
36. According to the face of the 239 patent, U.S. Patent 3,727,658, issued
to John D. Eldridge, Jr. ("Eldridge"), was not cited during the prosecution of
the 239 patent.
37. Eldridge describes a "receiver for surgical implements" that can be
sterilized along with the implements. (Eldridge at 1: 2 and at 2: 13–18.)
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