US3587839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Package and method of packaging a product
Assignee: Individual
•
Filing: 1969-02-20
•
Granted: 1971-06-28
•
Expires: 1989-02-20
Abstract
Abstract A PRODUCT PACKAGED BETWEEN TWO SOFT, HEAT SEALABLE SYNTHETIC, PLASTIC FILMS, ONE BEING STRETCHABLE AND ELASTIC AND THE OTHER BEING HEAT SHRINKABLE. THE FILMS ARE BROUGHT TOGETHER AND HEAT SEALED ALONG A LINE CIRCUMSCRIBING THE PRODUCT. THE HEAT SHRINKABLE FILM IS THEN HEAT SHRUNK SUFFICIENTLY TO DRAW BOTH FILMS TAUT OVER THE PRODUCT AND STRETCH THE STRETCHABLE FILM, THE STRETCHABLE FILM ACTING TO LIMIT THE STRESS ON THE HEAT SEALED SEAMS DURING HEAT SHRINKING AND TO THEREAFTER TAKE UP SLACK DUE TO RELAXATION OF THE HEAT SHRUNK FILM.
Inventors
- 👤 Forrest G Von Brecht
- 👤 Ryder Pratt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:14
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/28; B65D75/30; B65B; B65B53/00; B65D75/002; B65D75/004
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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |