Patent US3974539A successfully refreshed from Google Patents.
US3974539A
Expired / Lapsed
US
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Cutter device for typewriter correction pick-off device
Assignee: Individual
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Filing: 1975-01-08
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Granted: 1976-08-17
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Expires: 1995-01-08
Abstract
Abstract A correction device for typewritten material for correcting type errors when using typewriter ribbons having a non-absorbent, non-penetrating, non-wetting ink. The device includes a wax pick-off rod mounted for advancement and retracted in a casing. A resiliently mounted cutting blade is provided for cutting a flat end on the rod to facilitate pick-off of an incorrectly typed character and for again providing a clean pick-off surface by cutting a fresh flat end after use.
Inventors
- 👤 Victor Barouh
- 👤 Robert Glenn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:08
CPC Classifications
B; B43; B43L; B43L19/00; B41; B41J; B41J29/00; B41J29/26; B41J29/36; B41J29/373
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
79 words
A correction device for typewritten material comprising a casing, a barrel rotatable in said casing, a tack wax pick-off rod mounted in said barrel for advancement and retraction relative thereto, and a cutting blade mounted on said barrel and extending normal to said rod for cutting a flat end on said rod, said cutting blade being integral with a leaf spring section and a ring being integral with said leaf spring section, said ring being secured to said barrel.
Claim 2
Dependent Claim
79 words
A correction device for typewritten material comprising a casing, a barrel rotatable in said casing, a tack wax pick-off rod mounted in said barrel for advancement and retraction relative thereto, and a cutting blade mounted on said barrel and extending normal to said rod for cutting a flat end on said rod, said cutting blade being integral with a leaf spring section and a ring being integral with said leaf spring section, said ring being secured to said barrel.
Claim 3
Dependent Claim
23 words
A correction device according to claim 1, wherein said ring is rotatably mounted on said barrel, said blade having a semicircular cutting edge.
Claim 4
Dependent Claim
14 words
A correction device according to claim 2, wherein said rod is cylindrical in shape.
Claim 5
Dependent Claim
24 words
A correction device according to claim 3, wherein said rod is composed of 40 parts paraffin wax and 60 parts plastic microcrystalline petroleum wax.
Claim 6
Dependent Claim
13 words
A correction device according to claim 4 wherein said rod is light transmitting.
References Cited (Backward Citations)
US1482300A
Cited
US2335623A
Cited
US2492492A
Cited
US2580864A
Cited
US2736911A
Cited
US2813336A
Cited
CH341432A
Cited
US3397027A
Cited
US3797875A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-17 | 1980-02-16 | 1980-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-17 | 1984-02-16 | 1984-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-17 | 1988-02-16 | 1988-08-17 | $7700.00 | Window Closed / Lapsed |