US3076437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Writing instrument
Assignee: Individual
•
Filing: 1958-07-28
•
Granted: 1963-02-05
•
Expires: 1978-07-28
Abstract
No abstract record available.
Inventors
- 👤 Clifford N Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:10
CPC Classifications
B; B43; B43K; B43K21/00; B43K21/02; B43K21/16; B43K21/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
IN A WRITING INSTRUMENT, A UNITARY SELF-CONTAINED WRITING ASSEMBLY COMPRISING A LEAD SELECTOR AND A CLUTCH CONNECTED THERETO AT ALL TIMES, SAID ASSEMBLY HAVING AN OPENING THERETHROUGH FOR RECEIVING LEAD, SAID CLUTCH HAVING JAWS THEREON WITH OUTER INCLINED SURFACES, A CLUTCH CLOSING TUBE CIRCUMSCRIBING SAID SAID CLUTCH JAWS AT SAID INCLINED SURFACES, A MEMBER CONNECTED TO THE UPPER PORTION OF SAID CLUTCH, A CLUTCH CLOSING SPRING POSITIONED BETWEEN SAID MEMBER AND SAID CLUTCH CLOSING TUBE FOR BIASING THE LATTER AGAINST SAID INCLINED SURFACES, SAID LEAD SELECTOR HAVING A HEAD THEREON, A BEARING SLIDABLY MOUNTED ON SAID LEAD SELECTOR BENEATH SAID HEAD, A LEAD STOP EXTENDING LONGITUDINALLY OVER A MAJOR PORTION OF SAID WRITING ASSEMBLY, SAID LEAD STOP HAVING AN UPPER END PORTION TERMINATING AT SAID BEARING AND A LOWER END PORTION POSITIONED IN A SLOT IN ONE OF SAID JAWS, A LEAD STOP SPRING POSITIONED BETWEEN SAID MEMBER AND THE HEAD FOR BIASING THE UPPER END OF THE LEAD STOP UPWARDLY, SAID SPRINGS CONTACTING OPPOSITE SIDES OF SAID MEMBER, SAID LOWER END PORTION BEING
Claim 2
Dependent Claim
174 words
IN A WRITING INSTRUMENT, A UNITARY SELF-CONTAINED WRITING ASSEMBLY COMPRISING A LEAD SELECTOR AND A CLUTCH CONNECTED THERETO AT ALL TIMES, SAID ASSEMBLY HAVING AN OPENING THERETHROUGH FOR RECEIVING LEAD, SAID CLUTCH HAVING JAWS THEREON WITH OUTER INCLINED SURFACES, A CLUTCH CLOSING TUBE CIRCUMSCRIBING SAID SAID CLUTCH JAWS AT SAID INCLINED SURFACES, A MEMBER CONNECTED TO THE UPPER PORTION OF SAID CLUTCH, A CLUTCH CLOSING SPRING POSITIONED BETWEEN SAID MEMBER AND SAID CLUTCH CLOSING TUBE FOR BIASING THE LATTER AGAINST SAID INCLINED SURFACES, SAID LEAD SELECTOR HAVING A HEAD THEREON, A BEARING SLIDABLY MOUNTED ON SAID LEAD SELECTOR BENEATH SAID HEAD, A LEAD STOP EXTENDING LONGITUDINALLY OVER A MAJOR PORTION OF SAID WRITING ASSEMBLY, SAID LEAD STOP HAVING AN UPPER END PORTION TERMINATING AT SAID BEARING AND A LOWER END PORTION POSITIONED IN A SLOT IN ONE OF SAID JAWS, A LEAD STOP SPRING POSITIONED BETWEEN SAID MEMBER AND THE HEAD FOR BIASING THE UPPER END OF THE LEAD STOP UPWARDLY, SAID SPRINGS CONTACTING OPPOSITE SIDES OF SAID MEMBER, SAID LOWER END PORTION BEING
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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) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |