US5097728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Biopsy forceps jaw and method for making it
Assignee: Kimberly Clark Worldwide Inc
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Filing: 1990-09-21
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Granted: 1992-03-24
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Expires: 2010-09-21
Abstract
Abstract A method of forming a jaw for biopsy forceps with a very sharp edge. An initially flat metal plate is first relieved to form a recessed area extending along an edge. The edge is then honed sharp. Finally the plate is folded to bring the relieved areas into facing relationship to form a cup whose sharp edge extends along the edge of the cup, including around the bight formed by the bend.
Inventors
- 👤 Dennis Cox
- 👤 Lanita Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:09
CPC Classifications
B; B23; B23P; B23P15/00; A; A61; A61B; A61B17/00; A61B17/28; A61B17/2812; A61B17/282; A61B10/00; A61B10/02; A61B10/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
The method for forming a jaw for a biopsy forceps comprising: in a flat metal blank having a straight boundary edge and a flat surface on each side of said strait edge, forming a recess along a portion of said edge deepest contiguous to said edge, and becoming shallower as it extends away from said edge; honing said portion to form a sharp cutting edge along said boundary edge; bending said blank to form a fold at a fold location along said cutting edge to bring into contiguity those portions of the said surface on opposite sides of said fold; whereby to form a cup with a sharp peripheral cutting edge externally along a bight formed by the bent cutting edge.
Claim 2
Independent Claim
121 words
The method for forming a jaw for a biopsy forceps comprising: in a flat metal blank having a straight boundary edge and a flat surface on each side of said strait edge, forming a recess along a portion of said edge deepest contiguous to said edge, and becoming shallower as it extends away from said edge; honing said portion to form a sharp cutting edge along said boundary edge; bending said blank to form a fold at a fold location along said cutting edge to bring into contiguity those portions of the said surface on opposite sides of said fold; whereby to form a cup with a sharp peripheral cutting edge externally along a bight formed by the bent cutting edge.
References Cited (Backward Citations)
US2028558A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-24 | 1995-09-23 | 1996-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-24 | 1999-09-23 | 2000-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-24 | 2003-09-23 | 2004-03-24 | $7700.00 | Window Closed / Lapsed |