US3115118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Replaceable crayon pencil mechanism
Assignee: L H Mellin Inc
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Filing: 1961-05-01
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Granted: 1963-12-24
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Expires: 1981-05-01
Abstract
No abstract record available.
Inventors
- 👤 Dwight A Anderson
- 👤 Gretz Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:13
CPC Classifications
B; B43; B43K; B43K21/00; B43K21/02; B43K21/08; B43K21/085; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A CRAYON PENCIL RELOADABLE WITH CRAYON UNITS COMPRISING A HOLLOW SUBSTANTIALLY CYLINDRICAL CASING OPEN AT ONE END AND CLOSED AT THE OTHER END, A THREADED ROD IN SAID CASING AND ADAPTED TO BE ROTATED THEREWITH, A HOLLOW CYLINDRICAL SLEEVE ADAPTED TO BE AXIALLY LOCKED IN THE OPEN END OF SAID CASING, A CRAYON HOLDING UNIT ADAPTED TO BE AXIALLY LOCKED IN SAID CYLINDRICAL SLEEVE BUT ROTATABLE THEREIN, SAID UNIT INCLUDING A CRAYON AND A HOLLOW SUBSTANTIALLY CYLINDRICAL SHELL ENCLOSING SAID CRAYON AND HAVING A PLURALITY OF RESILIENT FINGERS AT ONE THEREOF, THE INNER SURFACES OF THE ENDS OF SAID FINGERS BEING THREADED FOR MESHING WITH THE THREADS OF SAID ROD WHEN SAID SHELL IS POSITIONED IN SAID SLEEVE, AND MEANS FOR INTERCONNECTING SAID CRAYON AND TO SAID ROD.
Claim 2
Dependent Claim
128 words
A CRAYON PENCIL RELOADABLE WITH CRAYON UNITS COMPRISING A HOLLOW SUBSTANTIALLY CYLINDRICAL CASING OPEN AT ONE END AND CLOSED AT THE OTHER END, A THREADED ROD IN SAID CASING AND ADAPTED TO BE ROTATED THEREWITH, A HOLLOW CYLINDRICAL SLEEVE ADAPTED TO BE AXIALLY LOCKED IN THE OPEN END OF SAID CASING, A CRAYON HOLDING UNIT ADAPTED TO BE AXIALLY LOCKED IN SAID CYLINDRICAL SLEEVE BUT ROTATABLE THEREIN, SAID UNIT INCLUDING A CRAYON AND A HOLLOW SUBSTANTIALLY CYLINDRICAL SHELL ENCLOSING SAID CRAYON AND HAVING A PLURALITY OF RESILIENT FINGERS AT ONE THEREOF, THE INNER SURFACES OF THE ENDS OF SAID FINGERS BEING THREADED FOR MESHING WITH THE THREADS OF SAID ROD WHEN SAID SHELL IS POSITIONED IN SAID SLEEVE, AND MEANS FOR INTERCONNECTING SAID CRAYON AND TO SAID ROD.
References Cited (Backward Citations)
US2407983A
Cited
GB156189A
Cited
US1594978A
Cited
US2356474A
Cited
US2839029A
Cited
US2990205A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |