US4428515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knife scabbard with integral blade sharpener
Assignee: Fiskars Oyj
•
Filing: 1982-04-26
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Granted: 1984-01-31
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Expires: 2002-04-26
Abstract
Abstract A belt-mountable scabbard for carrying a sportsman's knife comprises spaced apart walls defining an elongated recess for receiving and protecting the blade of a knife carried in the scabbard. A knife blade sharpener is permanently mounted on the scabbard and comprises a blade-receiving sharpening slot formed in the scabbard and a pair of angularly arranged abrasive elements permanently attached to a wall of the scabbard near the sharpening slot for making sliding engagement with the edge of a knife blade being moved in the slot to effect sharpening.
Inventors
- 👤 Paul C. Mayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:34
CPC Classifications
B; B26; B26B; B26B29/00; B26B29/02; B26B29/025; B24; B24D; B24D15/00; B24D15/06; B24D15/08; B24D15/084
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
102 words
In combination: a knife scabbard having a pair of spaced apart walls enclosing an elongated recess for receiving and protecting the blade of a knife carried by said scabbard; and knife blade sharpening means on said scabbard and comprising: a blade-receiving sharpening slot in said scabbard defined by a pair of registering holes in said scabbard walls, said slot having an axis transverse to the longitudinal axis of said scabbard; and blade sharpening abrasive means on said scabbard near said sharpening slot for sliding engagement with the edge of a knife blade being moved in said sharpening slot to effect sharpening thereof.
Claim 2
Dependent Claim
102 words
In combination: a knife scabbard having a pair of spaced apart walls enclosing an elongated recess for receiving and protecting the blade of a knife carried by said scabbard; and knife blade sharpening means on said scabbard and comprising: a blade-receiving sharpening slot in said scabbard defined by a pair of registering holes in said scabbard walls, said slot having an axis transverse to the longitudinal axis of said scabbard; and blade sharpening abrasive means on said scabbard near said sharpening slot for sliding engagement with the edge of a knife blade being moved in said sharpening slot to effect sharpening thereof.
Claim 3
Dependent Claim
15 words
A combination according to claim 1 wherein said sharpening slot is closed at both ends.
Claim 4
Dependent Claim
15 words
A combination according to claim 1 wherein said sharpening slot is open at one end.
Claim 5
Dependent Claim
29 words
A combination according to claim 1 or 2 or 3 wherein said abrasive means comprises at least one abrasive member rigidly secured to said scabbard adjacent said sharpening slot.
Claim 6
Dependent Claim
34 words
A combination according to claim 1 or 2 or 3 wherein said abrasive means comprises a pair of abrasive members rigidly secured to said scabbard and disposed in angular relationship relative to each other.
Claim 7
Dependent Claim
20 words
A combination according to claim 6 wherein said pair of abrasive members are in overlapped relationship relative to each other.
Claim 8
Dependent Claim
21 words
A combination according to claim 5 wherein said pair of registering holes in said scabbard walls communicates with said elongated recess.
References Cited (Backward Citations)
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Cited
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Cited
US2767530A
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US2852897A
Cited
US3381807A
Cited
US3676961A
Cited
US3576278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-01-30 | 1987-08-01 | 1988-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-30 | 1991-08-01 | 1992-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-30 | 1995-08-01 | 1996-01-31 | $7700.00 | Window Closed / Lapsed |