US3561449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutter tool
Assignee: Individual
•
Filing: 1968-05-01
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Granted: 1971-02-09
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Expires: 1988-05-01
Abstract
Abstract A cutter tool for forming sockets in the skin of the scalp of a person with ease and precision. The tool may be produced at a reasonable cost so that the tool can be discarded after a single operation. The tool comprises an elongated handle cylindrical in cross section, with a detachable tubular head open at both ends, with a knife edge at one end. The head is formed with guide slots and bleed holes.
Inventors
- 👤 Frank A Bellantoni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:44
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/32053; A61F; A61F2/00; A61F2/02; A61F2/10; A61B2017/00743; A61B2017/00747; A61B2017/00752
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
110 words
A cutter tool for forming removable plugs and sockets in the skin of the scalp of a person, said tool comprising an elongated solid cylindrical handle, a tubular cutting head on one end of the handle and means for securing the head on the handle, said cutter head having a tapered portion at one end thereof terminating in a circular knife edge, said means for securing the head on the handle including an annular groove in the body of the handle adjacent one end thereof and an annular bead on the interior of the tubular cutting head adjacent it inner end and adapted to snap into the groove upon assembly.
Claim 2
Dependent Claim
110 words
A cutter tool for forming removable plugs and sockets in the skin of the scalp of a person, said tool comprising an elongated solid cylindrical handle, a tubular cutting head on one end of the handle and means for securing the head on the handle, said cutter head having a tapered portion at one end thereof terminating in a circular knife edge, said means for securing the head on the handle including an annular groove in the body of the handle adjacent one end thereof and an annular bead on the interior of the tubular cutting head adjacent it inner end and adapted to snap into the groove upon assembly.
Claim 3
Dependent Claim
87 words
A cutter tool for forming removable plugs and sockets in the skin of the scalp of a person as defined in claim 1, a transverse pin fixed on the handle below the annular groove thereof and with its ends projecting outwardly from the opposite sides thereof, said cutter head having opposed slots intersecting one end and the annular bead thereof adapted to coact with the projecting ends of the pin for assembling the cutter head on the handle and for preventing the cutter head from turning thereon.
Claim 4
Dependent Claim
141 words
A cutter tool for forming removable plugs and sockets in the skin of the scalp of a person, said tool comprising an elongated solid cylindrical handle, a tubular cutting head on one end of the handle and means for securing the head on the handle, said cutter head having a tapered portion at one end thereof terminating in a circular knife edge, and a device for removing a plug of skin cut from the scalp, said device including a sleeve slidably mounted on the handle, and opposed elongated spring arms carried by the sleeve extending along the body of the handle, and opposed inwardly extending prongs on the free ends of the arms adapted to snap into the under surface of the cut plug in the scalp whereby longitudinal movement of the cutter tool removes the cut plug from the scalp.
Claim 5
Dependent Claim
141 words
A cutter tool for forming removable plugs and sockets in the skin of the scalp of a person, said tool comprising an elongated solid cylindrical handle, a tubular cutting head on one end of the handle and means for securing the head on the handle, said cutter head having a tapered portion at one end thereof terminating in a circular knife edge, and a device for removing a plug of skin cut from the scalp, said device including a sleeve slidably mounted on the handle, and opposed elongated spring arms carried by the sleeve extending along the body of the handle, and opposed inwardly extending prongs on the free ends of the arms adapted to snap into the under surface of the cut plug in the scalp whereby longitudinal movement of the cutter tool removes the cut plug from the scalp.
References Cited (Backward Citations)
US2473968A
Cited
US2505358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |