US4432138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting blade
Assignee: Individual
•
Filing: 1982-06-04
•
Granted: 1984-02-21
•
Expires: 2002-06-04
Abstract
Abstract A cutting blade for a hand-held cutter for cutting a cloth cover from a dampener roller without damaging any material under the cutter. The blade has an upwardly curved front bottom edge portion, a convexly curved front tip portion, and a concavely curved upwardly extending cutting edge portion.
Inventors
- 👤 Albert V. Piccolo, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:26
CPC Classifications
B; B26; B26B; B26B27/00; B41; B41F; B41F7/00; B41F7/20; B41F7/24; Y; Y10; Y10S; Y10S30/00; Y10S30/03; Y10S30/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
136 words
A hand-held cutter for cutting a cover from a roller comprising: a handle; a cutting blade having a longitudinally extending bottom edge portion, an upwardly curved front bottom edge portion extending forwardly of said longitudinally extending bottom edge portion, a convexly curved front tip portion, a concavely curved upwardly extending cutting edge portion, and a longitudinally extending rear portion set in said handle, said cutting blade including an upper portion extending forwardly and upwardly from the upper region of said upwardly extending cutting edge portion and having a downwardly extending concavely curved cutting edge portion which joins said upwardly extending cutting edge portion and which extends upwardly from the uppermost region of said longitudinally extending rear portion a distance equal to approximately one-third the maximum height of said uppermost portion of said longitudinally extending rear portion.
Claim 2
Dependent Claim
136 words
A hand-held cutter for cutting a cover from a roller comprising: a handle; a cutting blade having a longitudinally extending bottom edge portion, an upwardly curved front bottom edge portion extending forwardly of said longitudinally extending bottom edge portion, a convexly curved front tip portion, a concavely curved upwardly extending cutting edge portion, and a longitudinally extending rear portion set in said handle, said cutting blade including an upper portion extending forwardly and upwardly from the upper region of said upwardly extending cutting edge portion and having a downwardly extending concavely curved cutting edge portion which joins said upwardly extending cutting edge portion and which extends upwardly from the uppermost region of said longitudinally extending rear portion a distance equal to approximately one-third the maximum height of said uppermost portion of said longitudinally extending rear portion.
Claim 3
Dependent Claim
47 words
A cutter in accordance with claim 1 in which said downwardly extending cutting edge portion extends forwardly of the uppermost region of said upwardly extending cutting edge portion a distance equal to approximately one-third the front to rear length dimension of said upwardly extending cutting edge portion.
Claim 4
Dependent Claim
31 words
A blade in accordance with claim 1 in which said convexly curved front tip portion has a height approximately one-quarter of the maximum height of the upwardly extending cutting edge portion.
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-20 | 1987-08-22 | 1988-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-20 | 1991-08-22 | 1992-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-20 | 1995-08-22 | 1996-02-21 | $7700.00 | Window Closed / Lapsed |