US3224418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pencil sharpening device
Assignee: Swingline Inc
•
Filing: 1961-08-11
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Granted: 1965-12-21
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Expires: 1981-08-11
Abstract
No abstract record available.
Inventors
- 👤 Ruskin Henry
- 👤 Sheldon I Kohen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:46
CPC Classifications
B; B43; B43L; B43L23/00; B43L23/02; B43L23/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
184 words
A PENCIL SHARPENER HAVING A BODY HAVING INCLUDING A HOLLOW CHIP RECEPTACLE PORTION THEREUPON AND PROVIDED WITH A SUBSTANTIAL CIRCULAR FIRST OPENING EXTENDING INWARDLY FROM THE REAR THEREOF AND COMMUNICATING WITH THE INTERIOR OF SAID CHIP RECEPTACLE PORTION, SAID BODY MEMBER ALSO HAVING A FRONT WALL PROVIDED WITH A SECOND OPENING THEREWITHIN IN ALINEMENT WITH SAID FIRST OPENING, A ROTATABLE CUTTER SUPPORT MEMBER ALSO WITHIN SAID CHIP RECEPTACLE PORTION HAVING A STEM MEMBER PROJECTING REARWARDLY THROUGH SAID FIRST OPENING, HANDLE MEANS SECURED TO THE PROJECTING PORTION OF SAID STEM MEMBER, CUTTER MEANS SUPPORTED UPON SAID CUTTER SUPPORT MEMBER, PENCIL GUIDE MEANS OPERATIVELY CONNECTED WITH SAID CUTTER AND PROJECTING FORWARDLY THROUGH SAID SECOND OPENING, A THIRD OPENING PROVIDED WITHIN SAID CHIP RECEPTACLE PORTION, AN OPENABLE COVER DISPOSED ABOUT SAID THIRD OPENING, SNAP LOCKING MEANS UPON SAID COVER AND COMPLEMENTARY LOCKING MEANS UPON THE ADJACENT PORTION OF SAID BODY MEMBER, A GUIDE PORTION AT THE REAR OF SAID BODY MEMBER, AND A STAND MEMBER HAVING A SUPPORT PORTION REMOVABLY AND LOCKABLY DISPOSABLE WITHIN SAID GUIDE PORTION, SAID BODY PORTION BEING DETACHABLY REMOVABLE FROM SAID STAND MEMBER.
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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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |