Patent US3461226A successfully refreshed from Google Patents.
US3105618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Micro pipette fluid distributor
Assignee: Beckman Coulter Inc
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Filing: 1960-09-21
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Granted: 1963-10-01
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Expires: 1980-09-21
Abstract
No abstract record available.
Inventors
- 👤 Ernest M Whitley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:31
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/14; B; B01; B01L; B01L3/00; B01L3/02; B01L3/0282; B05; B05B; B05B11/00; B05B11/0005; B05B15/00; B05B15/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
210 words
IN A PIPETTE FOR DELIVERY OF MEASURED VOLUMES OF LIQUID HAVING A STORAGE COMPARTMENT FOR STORING LIQUID TO BE MEASURED, A TEMPORARY HOLDING CHAMBER, A MEASURING TUBE HAVING ONE END COMMUNICATING WITH THE INTERIOR OF THE TEMPORARY HOLDING CHAMBER AND ITS OTHER END ADAPTED TO DELIVER A MEASURED AMOUNT OF LIQUID, AN OPENING FORMED IN SAID TEMPORARY HOLDING CHAMBER ABOVE THE MEASURING TUBE TO PROVIDE DIRECT COMMUNICATION BETWEEN THE INTERIOR OF THE TEMPORARY HOLDING CHAMBER AND THE SURROUNDS, A COMMUNICATING TUBE HAVING ONE END COMMUNICATING WITH THE TEMPORARY HOLDING CHAMBER AND ITS OTHER END EXTENDING INTO THE STORAGE COMPARTMENT WHEREBY LIQUID MAY BE TRANSFERRED THROUGH THE TUBE BETWEEN THE STORAGE COMPARTMENT AND THE HOLDING CHAMBER, THE IMPROVEMENT WHEREIN SAID COMMUNICATING TUBE INCLUDES AN UPPER PORTION WITH AN ENLARGED BORE, AN INTERNAL GROOVE FORMED IN SAID BORE, DEFLECTING MEANS FOR DEFLECTING THE FLUID FLOWING INTO THE TEMPORARY HOLDING CHAMBER INCLUDING A LOWER CYLINDRICAL PORTION ADAPTED TO FIT IN THE ENLARGED BORE OF THE COMMUNICATING TUBE AND AN ENLARGED UPPER PORTION ADAPTED TO DEFLECT THE LIQUID STREAM, PROJECTIONS FORMED ON SAID LOWER PORTION, SAID CYLINDRICAL PORTION BEING ACCOMMODATED IN THE ENLARGED BORE OF THE COMMUNICATING TUBE AND SAID PROJECTIONS RIDING WITHIN THE GROOVE TO LOCK SAID DEFLECTING MEANS INTO THE COMMUNICATING TUBE.
Claim 2
Dependent Claim
210 words
IN A PIPETTE FOR DELIVERY OF MEASURED VOLUMES OF LIQUID HAVING A STORAGE COMPARTMENT FOR STORING LIQUID TO BE MEASURED, A TEMPORARY HOLDING CHAMBER, A MEASURING TUBE HAVING ONE END COMMUNICATING WITH THE INTERIOR OF THE TEMPORARY HOLDING CHAMBER AND ITS OTHER END ADAPTED TO DELIVER A MEASURED AMOUNT OF LIQUID, AN OPENING FORMED IN SAID TEMPORARY HOLDING CHAMBER ABOVE THE MEASURING TUBE TO PROVIDE DIRECT COMMUNICATION BETWEEN THE INTERIOR OF THE TEMPORARY HOLDING CHAMBER AND THE SURROUNDS, A COMMUNICATING TUBE HAVING ONE END COMMUNICATING WITH THE TEMPORARY HOLDING CHAMBER AND ITS OTHER END EXTENDING INTO THE STORAGE COMPARTMENT WHEREBY LIQUID MAY BE TRANSFERRED THROUGH THE TUBE BETWEEN THE STORAGE COMPARTMENT AND THE HOLDING CHAMBER, THE IMPROVEMENT WHEREIN SAID COMMUNICATING TUBE INCLUDES AN UPPER PORTION WITH AN ENLARGED BORE, AN INTERNAL GROOVE FORMED IN SAID BORE, DEFLECTING MEANS FOR DEFLECTING THE FLUID FLOWING INTO THE TEMPORARY HOLDING CHAMBER INCLUDING A LOWER CYLINDRICAL PORTION ADAPTED TO FIT IN THE ENLARGED BORE OF THE COMMUNICATING TUBE AND AN ENLARGED UPPER PORTION ADAPTED TO DEFLECT THE LIQUID STREAM, PROJECTIONS FORMED ON SAID LOWER PORTION, SAID CYLINDRICAL PORTION BEING ACCOMMODATED IN THE ENLARGED BORE OF THE COMMUNICATING TUBE AND SAID PROJECTIONS RIDING WITHIN THE GROOVE TO LOCK SAID DEFLECTING MEANS INTO THE COMMUNICATING TUBE.
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) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |