US3572339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced hygienic medium applicator tubes
Assignee: Individual
•
Filing: 1968-05-10
•
Granted: 1971-03-23
•
Expires: 1988-05-10
Abstract
Abstract A TUBULAR, HYGIENIC MEDIUM APPLICATOR DEVICE INCLUDING A THIN-WALLED, RING-REINFORCED EXTERNAL TUBE. THE REINFORCING RING IS A LAMINATED STRUCTURE COMPOSED OF FIVE CONCENTRIC PLIES INCLUDING THREE PLIES OF PAPER SURROUNDING A PLY OF ELECTRICALLY CONDUCTIVE FOIL COATED ON ITS INNER SURFACE WITH A PLY OF THERMOPLASTIC RESIN MATERIAL. IN THE FABRICATION OF THE REINFORCED TUBE, THE RING IS TELESCOPED OVER THE EXTERIOR SURFACE OF THE EXTERNAL TUBE FLUSH WITH THE REAR EDGE THEREOF. THE RING IS THEN BONDED IN PLACE BY INDUCTIVELY HEATING THE FOIL TO HEAT THE THERMOPLASTIC RESIN AND FUSE THE RESIN TO THE TUBE SURFACE.
Inventors
- 👤 Joseph A Voss
- 👤 Carl W Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:18
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/20; A61F13/26
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) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |