US3118306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipette
Assignee: —
•
Filing: —
•
Granted: 1964-01-21
•
Expires: 1981-01-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:34
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/02; B01L3/0282; G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/14; Y; Y10; Y10T; Y10T137/00; Y10T137/2713; Y10T137/2842; Y10T137/2863; Y10T137/7722; Y10T137/7837; Y10T137/7847; Y10T137/7848; Y10T137/7879; Y10T137/7904; Y10T137/7908; Y10T137/7909
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A PIPETTE DEVICE COMPRISING A RESERVOIR FOR RETAINING LIQUID TO BE METERED; MEANS FORMING A CHAMBER ABOVE THE RESERVOIR; COMMUNICATION MEANS FOR DELIVERING THE LIQUID BETWEEN THE CHAMBER AND THE RESERVOIR IN BOTH DIRECTIONS; A CAPILLARY TUBE OF PREDETERMINED LENGTH AND CROSS-SECTIONAL AREA MOUNTED IN SAID MEANS FOR FORMING THE CHAMBER WITH A FIRST END OF THE TUBE EXTENDING WITHIN THE CHAMBER AND THE OTHER END EXTENDING FROM A SIDE OF THE CHAMBER; THE FIRST END OF THE CAPILLARY TUBE EXTENDING DOWNWARDLY SO AS TO OPEN TOWARD SAID RESERVOIR; SAID MEANS FOR FORMING THE CHAMBER INCLUDING MEANS ABOVE THE LEVEL OF THE FIRST END OF SAID CAPILLARY TUBE FOR OPENING THE CHAMBER TO THE SURROUNDING AIR.
Claim 2
Dependent Claim
116 words
A PIPETTE DEVICE COMPRISING A RESERVOIR FOR RETAINING LIQUID TO BE METERED; MEANS FORMING A CHAMBER ABOVE THE RESERVOIR; COMMUNICATION MEANS FOR DELIVERING THE LIQUID BETWEEN THE CHAMBER AND THE RESERVOIR IN BOTH DIRECTIONS; A CAPILLARY TUBE OF PREDETERMINED LENGTH AND CROSS-SECTIONAL AREA MOUNTED IN SAID MEANS FOR FORMING THE CHAMBER WITH A FIRST END OF THE TUBE EXTENDING WITHIN THE CHAMBER AND THE OTHER END EXTENDING FROM A SIDE OF THE CHAMBER; THE FIRST END OF THE CAPILLARY TUBE EXTENDING DOWNWARDLY SO AS TO OPEN TOWARD SAID RESERVOIR; SAID MEANS FOR FORMING THE CHAMBER INCLUDING MEANS ABOVE THE LEVEL OF THE FIRST END OF SAID CAPILLARY TUBE FOR OPENING THE CHAMBER TO THE SURROUNDING AIR.
References Cited (Backward Citations)
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Cited
US2311367A
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US2540360A
Cited
US2466128A
Cited
US2655175A
Cited
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |