US3273402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Specimen sampling and diluting apparatus
Assignee: Individual
•
Filing: 1964-04-27
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Granted: 1966-09-20
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Expires: 1984-04-27
Abstract
No abstract record available.
Inventors
- 👤 Andrew F Farr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:26
CPC Classifications
G; G01; G01N; G01N35/00; G01N35/10; G01N35/1095; B; B01; B01L; B01L3/00; B01L3/02; B01L3/0203; B01L3/0206; G01N1/00; G01N1/02; G01N1/10; G01N1/14; G01N1/28; G01N1/38; G01N35/08; F; F16; F16K; F16K15/00; F16K15/14; F16K15/141; F16K15/142; Y; Y10; Y10S; Y10S251/00; Y10S251/90; Y10T; Y10T436/00; Y10T436/25; Y10T436/2575
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A SPECIMENT SAMPLING APPARATUS COMPRISING: A CONTAINER HAVING A QUANTITY OF SPECIMENT LIQUID THEREIN, A SAMPLING TUBE OF PREDETERMINED CAPACITY, PUMP MEANS FOR DRAWING LIQUID FROM SAID CONTAINER INTO SAID TUBE AND FOR REMOVING EXCESS LIQQUID OVERFLOWING SAID TUBE, SAID PUMP MEANS INCLUDING A SAMPLING VALVE CHAMBER, A PRESSURE RESPONSIVE SAMPLING VALVE WITHIN SAID CHAMBER AT ONE END OF SAID TUBE, A BARREL COMMUNICATING WITH SAID CHAMBER, A PLUNGER MOVABLE IN ONE DIRECTION WITHIN SAID BARREL FOR REDUCING PRESSURE WITHIN SAID CHAMBER, AND COVERABLE PASSAGE MEANS THROUGH SAID PLUNGER CLOSED TO REDUCE PRESSURE IN SAID CHAMBER UPON PLUNGER MOVEMENT IN SAID ONE DIRECTION WITHIN SAID BARREL
Claim 2
Dependent Claim
106 words
A SPECIMENT SAMPLING APPARATUS COMPRISING: A CONTAINER HAVING A QUANTITY OF SPECIMENT LIQUID THEREIN, A SAMPLING TUBE OF PREDETERMINED CAPACITY, PUMP MEANS FOR DRAWING LIQUID FROM SAID CONTAINER INTO SAID TUBE AND FOR REMOVING EXCESS LIQQUID OVERFLOWING SAID TUBE, SAID PUMP MEANS INCLUDING A SAMPLING VALVE CHAMBER, A PRESSURE RESPONSIVE SAMPLING VALVE WITHIN SAID CHAMBER AT ONE END OF SAID TUBE, A BARREL COMMUNICATING WITH SAID CHAMBER, A PLUNGER MOVABLE IN ONE DIRECTION WITHIN SAID BARREL FOR REDUCING PRESSURE WITHIN SAID CHAMBER, AND COVERABLE PASSAGE MEANS THROUGH SAID PLUNGER CLOSED TO REDUCE PRESSURE IN SAID CHAMBER UPON PLUNGER MOVEMENT IN SAID ONE DIRECTION WITHIN SAID 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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |