US3106908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rapidly retractable pencil mechanism
Assignee: L H Mellin Inc
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Filing: 1961-05-01
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Granted: 1963-10-15
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Expires: 1981-05-01
Abstract
No abstract record available.
Inventors
- 👤 Gretz Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:03
CPC Classifications
B; B43; B43K; B43K21/00; B43K21/02; B43K21/08; B43K21/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
A CRAYON PENCIL COMPRISING AN OPEN-ENDED CASING, A THREADED ROD IN SAID CASING AND ADAPTED TO BE MOVED AXIALLY THEREIN ONE END OF SAID BEING ADAPTED TO HAVE A CRAYON ATTACHED THERETO, A HOLDER FOR SAID CRAYON, SAID HOLDER HAVING A PORTION THEREOF WITHIN SAID CASING, MEANS ON SAID CRAYON HOLDER FOR ADVANCING SAID CRAYON THERETHROUGH DURING RELATIVE ROTATION OF SAID ROD WITH RESPECT TO SAID HOLDER, SAID MEANS INCLUDING RESILIENT THREADED MEANS SURROUNDING SAID ROD AND ADAPTED TO ENGAGE THE THREADS OF SAID ROD, A SECOND RESILIENT MEANS SURROUNDING SAID CRAYON HOLDER AND ADAPTED TO NORMALLY URGE SAID RESILIENT THREADED MEANS INTO ENGAGEMENT WITH THE THREADS OF SAID ROD, A THIRD RESILIENT MEANS SURROUNDING SAID ROD AND COMPRESSED BY THE ADVANCEMENT OF SAID ROD WITHIN SAID CRAYON HOLDER, AND MEANS ADAPTED TO DISENGAGE THE THREADS OF SAID RESILIENT THREADED MEANS FROM THE THREADS OF SAID ROD TO PERMIT THE RAPID RETURN OF SAID ROD INTO SAID SHELL BY SAID THIRD RESILIENT MEANS UPON THE AXIAL MOVEMENT OF SAID CRAYON HOLDER TOWARD SAID ROD.
Claim 2
Dependent Claim
174 words
A CRAYON PENCIL COMPRISING AN OPEN-ENDED CASING, A THREADED ROD IN SAID CASING AND ADAPTED TO BE MOVED AXIALLY THEREIN ONE END OF SAID BEING ADAPTED TO HAVE A CRAYON ATTACHED THERETO, A HOLDER FOR SAID CRAYON, SAID HOLDER HAVING A PORTION THEREOF WITHIN SAID CASING, MEANS ON SAID CRAYON HOLDER FOR ADVANCING SAID CRAYON THERETHROUGH DURING RELATIVE ROTATION OF SAID ROD WITH RESPECT TO SAID HOLDER, SAID MEANS INCLUDING RESILIENT THREADED MEANS SURROUNDING SAID ROD AND ADAPTED TO ENGAGE THE THREADS OF SAID ROD, A SECOND RESILIENT MEANS SURROUNDING SAID CRAYON HOLDER AND ADAPTED TO NORMALLY URGE SAID RESILIENT THREADED MEANS INTO ENGAGEMENT WITH THE THREADS OF SAID ROD, A THIRD RESILIENT MEANS SURROUNDING SAID ROD AND COMPRESSED BY THE ADVANCEMENT OF SAID ROD WITHIN SAID CRAYON HOLDER, AND MEANS ADAPTED TO DISENGAGE THE THREADS OF SAID RESILIENT THREADED MEANS FROM THE THREADS OF SAID ROD TO PERMIT THE RAPID RETURN OF SAID ROD INTO SAID SHELL BY SAID THIRD RESILIENT MEANS UPON THE AXIAL MOVEMENT OF SAID CRAYON HOLDER TOWARD SAID ROD.
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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) | 1966-10-14 | 1967-04-15 | 1967-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-14 | 1971-04-15 | 1971-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-14 | 1975-04-15 | 1975-10-15 | $7700.00 | Window Closed / Lapsed |