US3355950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chromatographic sample injection apparatus
Assignee: PRECISION SAMPLING CORP
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Filing: 1965-07-01
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Granted: 1967-12-05
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Expires: 1985-07-01
Abstract
No abstract record available.
Inventors
- 👤 Sr Rano Joseph Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:48
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/04; G01N30/16; G01N30/18; B; B01; B01L; B01L3/00; B01L3/02; B01L3/0275; B01L2300/00; B01L2300/08; B01L2300/0832; B01L2300/0838
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN APPARATUS FOR DIRECT INJECTION OF SMALL ACCURATELY MEASURED QUANTITIES OF FLUID INTO A SYSTEM THE COMBINATION COMPRISING AN ELONGATED MEMBER OF SUBSTANTIALLY UNIFORM CROSSSECTION CONTAINING AT ITS FORWARD END A RECESSED PORTION WHICH EXTENDS FROM THE TIP OF THE MEMBER TO A LOCATION INTERMEDIATE THE OPPOSITE END OF THE MEMBER, SAID RECESSED PORTION PROVIDING AN OPENING OF SUBSTANTIALLY UNIFORM CROSS-SECTION, A LENGTH RANGING FROM ABOUT 10 TO ABOUT 200 TIMES THE INSIDE CROSSSECTION OF THE OPENING, THE OVER-ALL LENGTH OF THE ELONGATED MEMBER IS GREATER THAN THE LENGTH OF THE RECESSED PORTION, AND A MATING SOLID MEMBER FOR FITTING INTO THE RECESSED PORTION OF THE ELONGATED MEMBER.
Claim 2
Dependent Claim
108 words
IN APPARATUS FOR DIRECT INJECTION OF SMALL ACCURATELY MEASURED QUANTITIES OF FLUID INTO A SYSTEM THE COMBINATION COMPRISING AN ELONGATED MEMBER OF SUBSTANTIALLY UNIFORM CROSSSECTION CONTAINING AT ITS FORWARD END A RECESSED PORTION WHICH EXTENDS FROM THE TIP OF THE MEMBER TO A LOCATION INTERMEDIATE THE OPPOSITE END OF THE MEMBER, SAID RECESSED PORTION PROVIDING AN OPENING OF SUBSTANTIALLY UNIFORM CROSS-SECTION, A LENGTH RANGING FROM ABOUT 10 TO ABOUT 200 TIMES THE INSIDE CROSSSECTION OF THE OPENING, THE OVER-ALL LENGTH OF THE ELONGATED MEMBER IS GREATER THAN THE LENGTH OF THE RECESSED PORTION, AND A MATING SOLID MEMBER FOR FITTING INTO THE RECESSED PORTION OF THE ELONGATED MEMBER.
References Cited (Backward Citations)
US2839152A
Cited
US3205711A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |