Patent US3174462A successfully refreshed from Google Patents.
US3174462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Writing instrument
Assignee: Individual
•
Filing: 1963-01-10
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Granted: 1965-03-23
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Expires: 1983-01-10
Abstract
No abstract record available.
Inventors
- 👤 Bross Helmut Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:08
CPC Classifications
B; B43; B43K; B43K24/00; B43K24/10; B43K24/16; B43K24/166
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A WRITING INSTRUMENT COMPRISING A CASING; A PLURALITY OF WRITING UNITS LONGITUDINALLY MOVABLE WITHIN SAID CASING BETWEEN A RETRACTED AND PROJECTED POSITION; A RETRACTION SPRING URGING EACH OF SAID UNITS TO A RETRACTED POSITION; A RELEASABLE LATCH MEANS FOR HOLDING A SELECTED WRITING UNIT PROJECTED AGAINST THE URGING OF ITS RETRACTION SPRING; AND A PUSHBUTTON ASSEMBLY CARRIED AT THE UPPER END OF SAID CASING INCLUDING A PUSHBUTTON HAVING AN OUTER END DEFINING AN ACTUATING SURFACE ENGAGEABLE WITH A FINGER OF THUMB AND AN INNER ACTUATING PORTION SELECTIVELY ENGAGEABLE WITH ONE OF SAID WRITING UNITS, SAID PUSHBUTTON BEING PIVOTALLY MOUNTED ON SAID INSTRUMENTS WHEREBY A FIRST PRESSURE EXERTED ON SAID ACTUATING SURFACE OFFSET FROM THE LONGITUDINAL AXIS OF SAID PUSHBUTTON WILL PIVOT SAID INNER PORTION TO BRING IT INTO ALIGNMENT WITH ONE OF SAID WRITING UNITS, AND A SECOND PRESSURE, LARGER THAN SAID FIRST PRESSURE WILL LONGITUDINALLY DEPRESS SAID PUSHBUTTON RELATIVE TO SAID WRITING UNITS TO THEREBY PROJECT THE WRITING UNIT ALIGNED WITH SAID INNER PORTION.
Claim 2
Dependent Claim
165 words
A WRITING INSTRUMENT COMPRISING A CASING; A PLURALITY OF WRITING UNITS LONGITUDINALLY MOVABLE WITHIN SAID CASING BETWEEN A RETRACTED AND PROJECTED POSITION; A RETRACTION SPRING URGING EACH OF SAID UNITS TO A RETRACTED POSITION; A RELEASABLE LATCH MEANS FOR HOLDING A SELECTED WRITING UNIT PROJECTED AGAINST THE URGING OF ITS RETRACTION SPRING; AND A PUSHBUTTON ASSEMBLY CARRIED AT THE UPPER END OF SAID CASING INCLUDING A PUSHBUTTON HAVING AN OUTER END DEFINING AN ACTUATING SURFACE ENGAGEABLE WITH A FINGER OF THUMB AND AN INNER ACTUATING PORTION SELECTIVELY ENGAGEABLE WITH ONE OF SAID WRITING UNITS, SAID PUSHBUTTON BEING PIVOTALLY MOUNTED ON SAID INSTRUMENTS WHEREBY A FIRST PRESSURE EXERTED ON SAID ACTUATING SURFACE OFFSET FROM THE LONGITUDINAL AXIS OF SAID PUSHBUTTON WILL PIVOT SAID INNER PORTION TO BRING IT INTO ALIGNMENT WITH ONE OF SAID WRITING UNITS, AND A SECOND PRESSURE, LARGER THAN SAID FIRST PRESSURE WILL LONGITUDINALLY DEPRESS SAID PUSHBUTTON RELATIVE TO SAID WRITING UNITS TO THEREBY PROJECT THE WRITING UNIT ALIGNED WITH SAID INNER PORTION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |