US3694280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming an end taper on plastic tubing
Assignee: EDWARD WECK AND CO Inc
•
Filing: 1970-05-01
•
Granted: 1972-09-26
•
Expires: 1990-05-01
Abstract
Abstract A METHODS FOR MANUFACTURING AN INTRAVENOUS NEEDLE ASSEMBLY INCLUDING A FLEXIBLE CATHETER HAVING A SMOOTH SURFACED TAPER AT THE DISTAL END. IN PARTICULAR, THE METHOD CONCERNS FORMING A SMOOTH SURFACED TAPER AT THE END OF A TUBE OF HEAT SHRINKABLE PLASTIC MATERIAL BY MEANS OF GRINDING OR BY THE APPLICATION OF HEAT TO THE END BEING TAPERED, OR BOTH.
Inventors
- 👤 William A Hoef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:38
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/06; A61M25/0606
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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |