Patent US1431348A successfully refreshed from Google Patents.
Patent US3218719A successfully refreshed from Google Patents.
US3218719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Percentage reader for capillary tubes and the like
Assignee: Thermo IEC Inc
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Filing: 1963-09-30
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Granted: 1965-11-23
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Expires: 1983-09-30
Abstract
No abstract record available.
Inventors
- 👤 Kenneth Van Dyck
- 👤 Henry S Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:35
CPC Classifications
B; B04; B04B; B04B5/00; B04B5/04; B04B5/0407; B04B5/0414
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
IN A READER FOR DETERMINING, AFTER CENTRIFUGATION IN A TUBE, THE PERCENTAGE OF A SEPARATED PORTION OF A SPECIMEN TO THE ENTIRE BODY THEREOF, A HOUSING HAVING A STRAIGHT LINE PATHWAY PARALLEL TO A TUBE WHEN THE READER IF POSITIONED FOR USE, A FIRST ARM PIVOTALLY CONNECTED TO SAID HOUSING WITH ITS PIVOT AXIS IN ALINEMENT WITH SAID PATHWAY AND WITH ITS OTHER END HAVING AN EXPOSED READING MARKER TO BE SET AT THE UPPER LEVEL OF THE ENTIRE BODY OF THE SPECIMEN, A SECOND ARM HAVING A SLOT IN ITS REAR END, A GUIDE MOVABLE ALONG SAID PATHWAY AND HAVING A PIVOT SLIDABLE IN SAID SECOND ARM SLOT, SAID SECOND ARM HAVING AN EXPOSED READING MARKER AT ITS OTHER END TO BE SET AT THE UPPER LEVEL OF THE SEPARATED PORTION, AND MEANS CONNECTING SAID ARMS TO SAID HOUSING BETWEEN THEIR ENDS AND PROVIDING A PIVOT FOR THE SECOND ARM THAT SO MOVES, AS THE FIRST ARM IS SWUNG, THAT ON A PREDETERMINED MOVEMENT OF SAID GUIDE ALONG SAID PATHWAY AND THE SWINGING OF SAID SECOND ARM RELATIVE TO SAID PIVOT, THE DISTANCES BETWEEN THE MARKERS ARE PROPORTIONAL IN ANY POSITION OF SAID FIRST ARM.
Claim 2
Dependent Claim
196 words
IN A READER FOR DETERMINING, AFTER CENTRIFUGATION IN A TUBE, THE PERCENTAGE OF A SEPARATED PORTION OF A SPECIMEN TO THE ENTIRE BODY THEREOF, A HOUSING HAVING A STRAIGHT LINE PATHWAY PARALLEL TO A TUBE WHEN THE READER IF POSITIONED FOR USE, A FIRST ARM PIVOTALLY CONNECTED TO SAID HOUSING WITH ITS PIVOT AXIS IN ALINEMENT WITH SAID PATHWAY AND WITH ITS OTHER END HAVING AN EXPOSED READING MARKER TO BE SET AT THE UPPER LEVEL OF THE ENTIRE BODY OF THE SPECIMEN, A SECOND ARM HAVING A SLOT IN ITS REAR END, A GUIDE MOVABLE ALONG SAID PATHWAY AND HAVING A PIVOT SLIDABLE IN SAID SECOND ARM SLOT, SAID SECOND ARM HAVING AN EXPOSED READING MARKER AT ITS OTHER END TO BE SET AT THE UPPER LEVEL OF THE SEPARATED PORTION, AND MEANS CONNECTING SAID ARMS TO SAID HOUSING BETWEEN THEIR ENDS AND PROVIDING A PIVOT FOR THE SECOND ARM THAT SO MOVES, AS THE FIRST ARM IS SWUNG, THAT ON A PREDETERMINED MOVEMENT OF SAID GUIDE ALONG SAID PATHWAY AND THE SWINGING OF SAID SECOND ARM RELATIVE TO SAID PIVOT, THE DISTANCES BETWEEN THE MARKERS ARE PROPORTIONAL IN ANY POSITION OF SAID FIRST ARM.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |