US3279659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injection apparatus
Assignee: PRECISION SAMPLING CORP
•
Filing: 1965-03-02
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Granted: 1966-10-18
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Expires: 1985-03-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Rano Joseph Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:22
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/001; A61M5/178; A61M5/31; A61M2005/3123; A61M5/315; A61M5/31525; A61M5/31531
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
91 words
IN AN APPARATUS FOR INJECTION OF SMALL, ACCURATELY MEASURED QUANTITIES OF FLUID INTO A SYSTEM THE COMBINATION COMPRISING A CHAMBER DEFINED BY A HOUSING HAVING ENCLOSING WALLS, AN OUTLET VENT LOCATED WITHIN THE HOUSING AND OPENING INTO THE CHAMBER, A PLUNGER LOCATED WITHIN THE CHAMBER, AND MOVABLE THEREIN TO AN EXTENT SUFFICIENT TO PHYSICALLY BLOCK TO OPEN AND CLOSE THE OUTLET VENT TO INITIATE AND TO CLOSE OFF FLOW OF FLUID FROM THE CHAMBER, A HOLLOW NEEDLE SLIDABLY MOUNTED WITHIN THE HOUSING, SAID NEEDLE BEING PROVIDED WITH A SIDE VENT OPENING
References Cited (Backward Citations)
US2290363A
Cited
US3203455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |