US3289675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular hypodermic needle
Assignee: Individual
•
Filing: 1964-05-25
•
Granted: 1966-12-06
•
Expires: 1984-05-25
Abstract
No abstract record available.
Inventors
- 👤 Dunmire Hannah
- 👤 Harry C Eby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:22
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/32; A61M5/3286; A61M5/329
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A TUBULAR HYPODERMIC NEEDLE HAVING A POINTED END DEFINED BY A PAIR OF END EDGE SURFACES THAT DIVERGE AXIALLY OF THE CANNULA FROM AN APEX AT ITS POINT WHILE EXTENDING AROUND THE CANNULA IN OPPOSITE DIRECTIONS FROM ONE SIDE TO THE OPPOSITE SIDE THEREOF, SAID END EDGE SURFACES INTERSECTING AT SAID APEX AND AT SAID OPPOSITE SIDE ALONG LINES SUBSTANTIALLY NORMAL TO THE AXIS OF THE CANNULA, AND EACH OF SAID SURFACES TWISTING CONTINUOUSLY ABOUT A MEDIAN LINE THEREOF FROM SAID APEX TO SAID INTERSECTION AT THE OPPOSITE SIDE OF THE NEEDLE THROUGH AN ANGLE OF 180*, AT LEAST THE APEX AND ADJACENT PORTIONS OF SAID END EDGES BEING HARDENED AND THINNED.
Claim 2
Dependent Claim
112 words
A TUBULAR HYPODERMIC NEEDLE HAVING A POINTED END DEFINED BY A PAIR OF END EDGE SURFACES THAT DIVERGE AXIALLY OF THE CANNULA FROM AN APEX AT ITS POINT WHILE EXTENDING AROUND THE CANNULA IN OPPOSITE DIRECTIONS FROM ONE SIDE TO THE OPPOSITE SIDE THEREOF, SAID END EDGE SURFACES INTERSECTING AT SAID APEX AND AT SAID OPPOSITE SIDE ALONG LINES SUBSTANTIALLY NORMAL TO THE AXIS OF THE CANNULA, AND EACH OF SAID SURFACES TWISTING CONTINUOUSLY ABOUT A MEDIAN LINE THEREOF FROM SAID APEX TO SAID INTERSECTION AT THE OPPOSITE SIDE OF THE NEEDLE THROUGH AN ANGLE OF 180*, AT LEAST THE APEX AND ADJACENT PORTIONS OF SAID END EDGES BEING HARDENED AND THINNED.
References Cited (Backward Citations)
US2187259A
Cited
US2769443A
Cited
US2944549A
Cited
FR1225009A
Cited
US3071135A
Cited
US3082769A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |