Patent US1775583A successfully refreshed from Google Patents.
Patent US3134364A successfully refreshed from Google Patents.
US3134364A
Expired / Lapsed
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Adjustable core-pointer for coredropping pencils
Assignee: Individual
•
Filing: 1957-11-25
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Granted: 1964-05-26
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Expires: 1977-11-25
Abstract
No abstract record available.
Inventors
- 👤 Chelazzi Casimiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:42
CPC Classifications
B; B43; B43L; B43L23/00; B43L23/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A CORE-POINTER FOR A PENCIL COMPRISING A FRAME INCLUDING A FIRST TUBE, A SECOND TUBE HAVING A POINTER THEREON INCLUDING AT LEAST ONE CUTTING EDGE AND HAVING AT LEAST ONE PROJECTION, A HELICAL SPRING POSITIONED BETWEEN SAID TUBES AND PRESSING SAID TUBES INTO ENGAGEMENT AND A MEMBER ROTATABLY MOUNTED IN SAID FRAME AND HAVING TEETH THEREON WHICH MESH WITH COMPLEMENTARY TEETH ON SAID SECOND TUBE, SAID MEMBER HAVING AN APERTURE THEREIN TO RECEIVE A PENCIL.
Claim 2
Dependent Claim
75 words
A CORE-POINTER FOR A PENCIL COMPRISING A FRAME INCLUDING A FIRST TUBE, A SECOND TUBE HAVING A POINTER THEREON INCLUDING AT LEAST ONE CUTTING EDGE AND HAVING AT LEAST ONE PROJECTION, A HELICAL SPRING POSITIONED BETWEEN SAID TUBES AND PRESSING SAID TUBES INTO ENGAGEMENT AND A MEMBER ROTATABLY MOUNTED IN SAID FRAME AND HAVING TEETH THEREON WHICH MESH WITH COMPLEMENTARY TEETH ON SAID SECOND TUBE, SAID MEMBER HAVING AN APERTURE THEREIN TO RECEIVE A PENCIL.
References Cited (Backward Citations)
US2188130A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |