US3308822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hypodermic needle
Assignee: Individual
•
Filing: 1964-04-02
•
Granted: 1967-03-14
•
Expires: 1984-04-02
Abstract
No abstract record available.
Inventors
- 👤 Luca Vincent D De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:08
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/32; A61M5/3286
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
A HYPODERMIC NEEDLE COMPRISING A CANNULA HAVING AN AXIALLY EXTENDING LUMEN, SAID CANNULA HAVING A POINTED TIP AND INCLUDING AN INCLINED FORWARD FACE PROVIDING AN INCLINED FORWARD OPEN END TO THE LUMEN, A FIRST PAIR OF FORWARDLY CONVERGENT BEVEL FACES MEETING SAID FORWARD FACE AT OBTUSE ANGLES THERETO TO FORM REARWARDLY DIVERGENT EDGE LINES AND CUTTING ACROSS THE OPEN END OF THE LUMEN FROM INTERMEDIATE POINTS OF ITS SIDE EDGES TO THE CENTER POINT OF ITS FORWARD END, SAID BEVEL FACES INTERSECTING EACH OTHER ALONG A CENTRAL EDGE LINE COINCIDING WITH THE VERTICAL DIAMETRIC PLANE OF SAID CANNULA AND EXTENDING FORWARDLY FROM THE FORWARD END OF THE LUMEN AT AN OUTWARD ANGLE THERETO, AND A SECOND PAIR OF FORWARDLY CONVERGENT BEVEL FACES INTERSECTING SAID FIRST PAIR OF BEVEL FACES AT ACUTE ANGLES THERETO TO FORM REARWARDLY DIVERGENT UPWARDLY INCLINED SHARP CUTTING EDGES AND INTERSECTING EACH OTHER ALONG A CENTRAL EDGE LINE COINCIDING WITH SAID VERTICAL DIAMETRIC PLANE AND INCLINED REARWARDLY FROM SAID FIRST CENTRAL EDGE LINE TO THE OUTER CANNULA SURFACE TO FORM A SHARP CUTTING EDGE.
Claim 2
Dependent Claim
177 words
A HYPODERMIC NEEDLE COMPRISING A CANNULA HAVING AN AXIALLY EXTENDING LUMEN, SAID CANNULA HAVING A POINTED TIP AND INCLUDING AN INCLINED FORWARD FACE PROVIDING AN INCLINED FORWARD OPEN END TO THE LUMEN, A FIRST PAIR OF FORWARDLY CONVERGENT BEVEL FACES MEETING SAID FORWARD FACE AT OBTUSE ANGLES THERETO TO FORM REARWARDLY DIVERGENT EDGE LINES AND CUTTING ACROSS THE OPEN END OF THE LUMEN FROM INTERMEDIATE POINTS OF ITS SIDE EDGES TO THE CENTER POINT OF ITS FORWARD END, SAID BEVEL FACES INTERSECTING EACH OTHER ALONG A CENTRAL EDGE LINE COINCIDING WITH THE VERTICAL DIAMETRIC PLANE OF SAID CANNULA AND EXTENDING FORWARDLY FROM THE FORWARD END OF THE LUMEN AT AN OUTWARD ANGLE THERETO, AND A SECOND PAIR OF FORWARDLY CONVERGENT BEVEL FACES INTERSECTING SAID FIRST PAIR OF BEVEL FACES AT ACUTE ANGLES THERETO TO FORM REARWARDLY DIVERGENT UPWARDLY INCLINED SHARP CUTTING EDGES AND INTERSECTING EACH OTHER ALONG A CENTRAL EDGE LINE COINCIDING WITH SAID VERTICAL DIAMETRIC PLANE AND INCLINED REARWARDLY FROM SAID FIRST CENTRAL EDGE LINE TO THE OUTER CANNULA SURFACE TO FORM A SHARP CUTTING EDGE.
References Cited (Backward Citations)
US2409979A
Cited
US2560162A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |