Patent US3331082A successfully refreshed from Google Patents.
US3331082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pen lifting attachment for recording instruments
Assignee: Continental Carbon Co
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Filing: 1965-06-24
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Granted: 1967-07-11
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Expires: 1985-06-24
Abstract
No abstract record available.
Inventors
- 👤 Marion S Sheets
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:07
CPC Classifications
G; G01; G01D; G01D15/00; G01D15/24
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
125 words
THE COMBINATION WITH A RECORDING INSTRUMENT HAVING A LIFTABLE RECORDING PEN, OF A PEN LIFTING DEVICE COMPRISING AN ATTENUATED FLEXIBLE LINE DISPOSED OVER THE RECORDING CHART AND UNDER THE LIFTABLE PORTION OF THE RECORDING PEN; MEANS AT ONE SIDE OF SAID RECORDING INSTRUMENT FOR SECURING ONE END OF SAID FLEXIBLE LINE ABOVE AND LATERALLY SPACED FROM SAID CHART; MEANS AT THE OPPOSITE SIDE OF SAID RECORDING INSTRUMENT FOR CONTACTING SAID FLEXIBLE LINE AND DIVERTING IT AWAY FROM SAID CHART; AND MANUALLY OPERABLE COLLECTING MEANS FOR RECEIVING A SUFFICIENT LENGTH OF THE DIVERTED PORTION OF SAID FLEXIBLE LINE TO CAUSE SAID FLEXIBLE LINE TO CONTACT THE UNDERSIDE OF THE LIFTABLE PORTION OF THE RECORDING PEN AND MOVE THE POINT THEREOF OUT OF CONTACT WITH SAID CHART.
References Cited (Backward Citations)
US1847918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |