US3232277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self sharpening pencil
Assignee: Individual
•
Filing: 1964-07-24
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Granted: 1966-02-01
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Expires: 1984-07-24
Abstract
No abstract record available.
Inventors
- 👤 James W Mcphee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:59
CPC Classifications
B; B43; B43K; B43K29/00; B43K29/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A PENCIL DEVICE COMPRISING: AN ELONGATED, HOLLOW, RELATIVELY THIN WALLED TUBULAR CASING HAVING A FORWARD END, A REARWARD END, AND A PASSAGE EXTENDING AXIALLY THERETHROUGH; AN END MEMBER FRICTIONALLY COUPLED TO SAID REARWARD END OF SAID CASING WITH FREEDOM FOR ROTATIONAL AND LONGITUDINAL SLIDING MOVEMENT RELATIVE THERETO; A CUTTING BLADE FIXED TO AN INTERMEDIATE PORTION OF SAID END MEMBER, SAID BLADE HAVING A CUTTING EDGE EXTENDING LATERALLY OF THE LONGITUDINAL AXIS THEREOF AND POSITIONED AT AN ANGLE SUCH AS TO BE POSITIONABLE IN CUTTING CONTACT WITH AND PROGRESSIVELY CUT AWAY THE REARWARD END EDGE OF SAID CASING UPON ROTATIONAL AND LONGITUDINAL SLIDING MOVEMENT OF SAID END MEMBER AND SAID CASING RELATIVE TO ONE ANOTHER, WHEREBY THE LENGTH OF SAID CASING MAY BE PROGRESSIVELY SHORTENED;
Claim 2
Dependent Claim
124 words
A PENCIL DEVICE COMPRISING: AN ELONGATED, HOLLOW, RELATIVELY THIN WALLED TUBULAR CASING HAVING A FORWARD END, A REARWARD END, AND A PASSAGE EXTENDING AXIALLY THERETHROUGH; AN END MEMBER FRICTIONALLY COUPLED TO SAID REARWARD END OF SAID CASING WITH FREEDOM FOR ROTATIONAL AND LONGITUDINAL SLIDING MOVEMENT RELATIVE THERETO; A CUTTING BLADE FIXED TO AN INTERMEDIATE PORTION OF SAID END MEMBER, SAID BLADE HAVING A CUTTING EDGE EXTENDING LATERALLY OF THE LONGITUDINAL AXIS THEREOF AND POSITIONED AT AN ANGLE SUCH AS TO BE POSITIONABLE IN CUTTING CONTACT WITH AND PROGRESSIVELY CUT AWAY THE REARWARD END EDGE OF SAID CASING UPON ROTATIONAL AND LONGITUDINAL SLIDING MOVEMENT OF SAID END MEMBER AND SAID CASING RELATIVE TO ONE ANOTHER, WHEREBY THE LENGTH OF SAID CASING MAY BE PROGRESSIVELY SHORTENED;
References Cited (Backward Citations)
US562303A
Cited
US2022789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |