Patent US3077184A successfully refreshed from Google Patents.
US3077184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double-ended ball point pen
Assignee: Lindy Pen Co Inc
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Filing: 1959-10-12
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Granted: 1963-02-12
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Expires: 1979-10-12
Abstract
No abstract record available.
Inventors
- 👤 Jerome P Vogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:29
CPC Classifications
B; B43; B43K; B43K27/00; B43K27/08; B43K27/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A DOUBLE ENDED PEN COMPRISING: A SUBSTANTIALLY RIGID INK TUBE OF CYLINDRICAL CROSS SECTION AND HAVING A BALLPOINT ASSEMBLY AT ONE END AND AN OFFSET PORTION OF RELATIVELY FLATTENED CROSS SECTION AND TERMINATING IN A CYLINDRICAL PORTION AT THE OTHER END THAT IS OFFSET FROM THE BALLPOINT ASSEMBLY, A SECOND SUBSTANTIALLY RIGID INK TUBE OF CYLINDRICAL CROSS SECTION AND HAVING A BALLPOINT ASSEMBLY AT ONE END AND AN OFFSET PORTION OF RELATIVELY FLATTENED CROSS SECTION TERMINATING IN A CYLINDRICAL PORTION AT THE OTHER END THAT IS OFFSET FROM THE BALLPOINT ASSEMBLY, SAID INK TUBES BEING INTERENGAGED WITH THE FLATTENED PORTIONS OF EACH CARTRIDGE POSITIONED ADJACENT THE TERMINAL CYLINDRICAL PORTION OF THE OTHER THEREBY TO INTERLOCK, AND A BARREL FOR TIGHTLY FASTENING SAID INK TUBES TOGETHER IN SAID INTERLOCKED RELATION, THE WRITING END OF SAID BALLPOINT ASSEMBLIES PROJECTING BEYOND THE OPPOSITE ENDS OF THE BARREL.
Claim 2
Dependent Claim
144 words
A DOUBLE ENDED PEN COMPRISING: A SUBSTANTIALLY RIGID INK TUBE OF CYLINDRICAL CROSS SECTION AND HAVING A BALLPOINT ASSEMBLY AT ONE END AND AN OFFSET PORTION OF RELATIVELY FLATTENED CROSS SECTION AND TERMINATING IN A CYLINDRICAL PORTION AT THE OTHER END THAT IS OFFSET FROM THE BALLPOINT ASSEMBLY, A SECOND SUBSTANTIALLY RIGID INK TUBE OF CYLINDRICAL CROSS SECTION AND HAVING A BALLPOINT ASSEMBLY AT ONE END AND AN OFFSET PORTION OF RELATIVELY FLATTENED CROSS SECTION TERMINATING IN A CYLINDRICAL PORTION AT THE OTHER END THAT IS OFFSET FROM THE BALLPOINT ASSEMBLY, SAID INK TUBES BEING INTERENGAGED WITH THE FLATTENED PORTIONS OF EACH CARTRIDGE POSITIONED ADJACENT THE TERMINAL CYLINDRICAL PORTION OF THE OTHER THEREBY TO INTERLOCK, AND A BARREL FOR TIGHTLY FASTENING SAID INK TUBES TOGETHER IN SAID INTERLOCKED RELATION, THE WRITING END OF SAID BALLPOINT ASSEMBLIES PROJECTING BEYOND THE OPPOSITE ENDS OF THE BARREL.
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) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |