US3695901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coherent stick of shirred tubing
Assignee: LOUIS L WINOKUR
•
Filing: 1970-05-07
•
Granted: 1972-10-03
•
Expires: 1990-05-07
Abstract
Abstract MANDREL TO ENGAGE AND LONGITUDINALLY INDENT THE OUTER SURFACE OF THE SHIRREED TUBING. A SHIRRED STICK OF FLEXIBLE TUBING HAVING A STRAIGHT BORE AND AN ORDERED PATTERN OF SHIRRED PLEATS HAS AN IMPROVED COHERENCY AND IS PROVIDED WITH ONE OR MORE LONGITUDINAL GROOVES FORMED AND EXTENDING ON ITS OUTER SURFACE FROM ONE END OF THE STICK TO THE OTHER. THE GROOVES ARE FORMED BY PASSING THE SHIRRED TUBING THROUGH A RESTRAINING DEVICE COMPRISING ONE OR MORE BLADES DISPOSED ABOUT A SHIRRING
Inventors
- 👤 Louis L Winokur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:53
CPC Classifications
A; A22; A22C; A22C13/00; A22C13/02; A22C13/023; A22C13/0013
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) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |