US3605750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray tip catheter
Assignee: Malco Inc
•
Filing: 1969-04-07
•
Granted: 1971-09-20
•
Expires: 1989-04-07
Abstract
Abstract CATHETERS OF THE DISPOSABLE, SEAMLESS, EXTRUDED PLASTIC TYPE ARE MADE WITH DISTAL END PORTIONS THAT ARE X-RAY OPAQUE BY FUSING A PLASTIC ANNULUS CONTAINING X-RAY OPAQUE PIGMENT ONTO THE PREFORMED TUBE. THE CATHETER MAY HAVE ONE OR MORE OF SUCH X-RAY OPAQUE OUTLINED OPENINGS IN THE DISTAL END PORTION AND WHERE A PLURALITY ARE PROVIDED, THEIR SPACING MAY BE PROPORTIONED TO THE SIZE AND TYPE OF THE CATHETER. SUCH X-RAY OUTLINE PORTIONS PERMIT THE POSITION OF THE DISTAL END PORTION OF THE CATHETER WITHIN A PATIENT TO BE DETERMINED BY X-RAY METHODS.
Inventors
- 👤 David S Sheridan
- 👤 Isaac S Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:26
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0108; A61M16/00; A61M16/04; A61B; A61B90/00; A61B90/39; A61M2205/00; A61M2205/32; A61M2207/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |