Patent US4094066A successfully refreshed from Google Patents.
US4094066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical razor blade with integral guard
Assignee: Individual
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Filing: 1977-03-08
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Granted: 1978-06-13
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Expires: 1997-03-08
Abstract
Abstract A surgical razor blade intended for one time use in shaving hair has an integral guard in the form of spiral windings of a fine flexible thread with the windings extending in uniformly spaced fashion around the blade cutting edge. The thread has a diameter within the range of 0.2 mm (0.0078 inches) to 1.0 mm (0.039 inches) and the spacing between adjacent windings of the thread is within the range of 1.0 mm (0.039 inches) to 4.0 mm (0.157 inches).
Inventors
- 👤 Donald S. Daniel, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:13
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/40; B26B21/4006; A; A61; A61B; A61B17/00; A61B17/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A surgical razor blade with an integral guard for its cutting edge in the form of a plurality of spiral windings of thread being of flexible material capable of being pressed against the blade cutting edge under pressure in shaving contact with the normally unshaven areas of the skin without severance of the thread, said thread having a diameter within the range of 0.2 mm to 1.0 mm, said windings extending around the cutting edge of the blade in a uniformly spaced manner and the spacing between adjacent windings being selected from the group consisting of 1.0 to 2.0 mm; 2.0 to 3.0 mm and 3.0 to 4.0 mm, and wherein said blade is sterile and is packaged in such condition for one time use only.
Claim 2
Dependent Claim
126 words
A surgical razor blade with an integral guard for its cutting edge in the form of a plurality of spiral windings of thread being of flexible material capable of being pressed against the blade cutting edge under pressure in shaving contact with the normally unshaven areas of the skin without severance of the thread, said thread having a diameter within the range of 0.2 mm to 1.0 mm, said windings extending around the cutting edge of the blade in a uniformly spaced manner and the spacing between adjacent windings being selected from the group consisting of 1.0 to 2.0 mm; 2.0 to 3.0 mm and 3.0 to 4.0 mm, and wherein said blade is sterile and is packaged in such condition for one time use only.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-12 | 1981-12-12 | 1982-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-12 | 1985-12-12 | 1986-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-12 | 1989-12-12 | 1990-06-13 | $7700.00 | Window Closed / Lapsed |