Patent US3216616A successfully refreshed from Google Patents.
US3216616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Syringe with upper and lower bores
Assignee: Individual
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Filing: 1964-03-02
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Granted: 1965-11-09
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Expires: 1984-03-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Homer Blankenship
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:34
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/315; A61M5/31596; B; B01; B01L; B01L3/00; B01L3/02; B01L3/021; B01L3/0217; B01L3/0231; A61M5/31525; A61M5/31531; A61M5/31598
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A SYRINGE, COMPRISING: (A) A TRANSPARENT TUBULAR BODY HAVING A LOWER BORE AND AN UPPER BORE, (B) SAID BODY HAVING VOLUME MARKS FOR INDICATING VARIOUS VOLUMES WITHIN EACH OF SAID BORES, (C) SAID UPPER BORE HAVING A LARGER DIAMETER THAN SAID LOWER BORE, (D) AN OUTER PLUNGER DISPOSED IN SAID UPPER BORE FOR LONGITUDINAL MOVEMENT THEREIN, (E) SAID OUTER PLUNGER IS VISIBLE THROUGH THE WALL OF SAID UPPER BORE, (F) SAID OUTER PLUNGER HAVING A LONGITUDINAL OPENING THERETHROUGH, (G) AN INNER PLUNGER EXTENDING THROUGH SAID LONGITUDINAL OPENING OF SAID OUTER PLUNGER AND MOVABLE LONGITUDINALLY THERETO AND INTO SAID LOWER BORE FOR DISCHARGING A PREDETERMINED QUANTITY OF FLUID FROM SAID LOWER BORE, AND (H) SAID INNER PLUNGER BEING VISIBLE THROUGH THE WALL OF SAID LOWER BORE.
Claim 2
Dependent Claim
125 words
A SYRINGE, COMPRISING: (A) A TRANSPARENT TUBULAR BODY HAVING A LOWER BORE AND AN UPPER BORE, (B) SAID BODY HAVING VOLUME MARKS FOR INDICATING VARIOUS VOLUMES WITHIN EACH OF SAID BORES, (C) SAID UPPER BORE HAVING A LARGER DIAMETER THAN SAID LOWER BORE, (D) AN OUTER PLUNGER DISPOSED IN SAID UPPER BORE FOR LONGITUDINAL MOVEMENT THEREIN, (E) SAID OUTER PLUNGER IS VISIBLE THROUGH THE WALL OF SAID UPPER BORE, (F) SAID OUTER PLUNGER HAVING A LONGITUDINAL OPENING THERETHROUGH, (G) AN INNER PLUNGER EXTENDING THROUGH SAID LONGITUDINAL OPENING OF SAID OUTER PLUNGER AND MOVABLE LONGITUDINALLY THERETO AND INTO SAID LOWER BORE FOR DISCHARGING A PREDETERMINED QUANTITY OF FLUID FROM SAID LOWER BORE, AND (H) SAID INNER PLUNGER BEING VISIBLE THROUGH THE WALL OF SAID LOWER BORE.
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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |