US3200813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aspirating syringes
Assignee: Individual
•
Filing: 1962-12-24
•
Granted: 1965-08-17
•
Expires: 1982-12-24
Abstract
No abstract record available.
Inventors
- 👤 George J Christakis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:45
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/15; A61B5/150007; A61B5/150015; A61B5/15003; A61B5/150206; A61B5/150213; A61B5/150221; A61B5/150351; A61B5/150374; A61B5/150381; A61B5/150389; A61B5/150404; A61B5/150473; A61B5/15048; A61B5/150488; A61B5/150496; A61B5/150732; A61B5/153; A61B5/154; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/32; A61B5/150259; A61M5/329; A61M5/3291
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN A TWO CHAMBERED SYRINGE FOR INJECTING A FIRST SUBSTANCE AND SUBSEQUENTLY WITHDRAWING A SECOND SUBSTANCE, THE IMPROVEMENT COMPRISING IN COMBINATION A HOLLOW ELONGATED NEEDLE DEFINING ALONG THE LENGTH OF THE NEEDLE A FIRST END OPENING, A SECOND END OPENING AND A THIRD OPENING SPACED BETWEEN SAID FIRST AND SECOND OPENINGS ALL SAID OPENINGS EXTENDING INTO THE HOLLOW PORTION OF THE NEEDLE, AND A PUNCTURABLE CLOSURE, SAID PUNCTURABLE CLOSURE HAVING A PORTION AXIALLY ALIGNED WITH SAID NEEDLE, SAID PORTION HAVING A THICKNESS SUBSTANTIALLY EQUAL TO THE SPACING BETWEEN SAID SECOND AND THIRD NEEDLE OPENING
Claim 2
Dependent Claim
94 words
IN A TWO CHAMBERED SYRINGE FOR INJECTING A FIRST SUBSTANCE AND SUBSEQUENTLY WITHDRAWING A SECOND SUBSTANCE, THE IMPROVEMENT COMPRISING IN COMBINATION A HOLLOW ELONGATED NEEDLE DEFINING ALONG THE LENGTH OF THE NEEDLE A FIRST END OPENING, A SECOND END OPENING AND A THIRD OPENING SPACED BETWEEN SAID FIRST AND SECOND OPENINGS ALL SAID OPENINGS EXTENDING INTO THE HOLLOW PORTION OF THE NEEDLE, AND A PUNCTURABLE CLOSURE, SAID PUNCTURABLE CLOSURE HAVING A PORTION AXIALLY ALIGNED WITH SAID NEEDLE, SAID PORTION HAVING A THICKNESS SUBSTANTIALLY EQUAL TO THE SPACING BETWEEN SAID SECOND AND THIRD NEEDLE OPENING
References Cited (Backward Citations)
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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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |