US3585707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making tubular products
Assignee: Cordis Corp
•
Filing: 1969-04-01
•
Granted: 1971-06-22
•
Expires: 1989-04-01
Abstract
Abstract PLASTIC TUBING OF ACCURATELY CONTROLLED BORE SIZE IS MADE BY EXTRUDING THE PLASTIC ONTO A DUCTILE WIRE CORE, AND THEREAFTER STRETCHING THE CRE TO REDUCE ITS DIAMETER AND FACILITATE ITS REMOVAL. THE CORE ALSO SERVES TO SUPPORT THE PLASTIC TUBE WALL DURING APPLICATION OF A BRAIDED WIRE LAYER.
Inventors
- 👤 Robert C Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:00
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0009; A61M25/0012; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49815; Y10T29/49817; Y10T29/4998
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) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |