US3792181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-rigid plastic package with reclosable seal
Assignee: Mahaffy and Harder Engineering Co
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Filing: 1969-09-24
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Granted: 1974-02-12
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Expires: 1989-09-24
Abstract
Abstract A PACKAGE COMPRISING A RECEPTACLE CUP OF SEMI-RIGID PLASTIC HAVING A TOP OF SEMI-RIGID PLASTIC SEALED TO FLANGES OF THE RECEPTACLE AND FORMED INWARDLY TO PRESS AGAINST THE PACKAGED PRODUCT AND HOLD IT IN PLACE WITH OR WITHOUT ERVACUATION OF THE INTERIOR. DIFFERENT TECHNIQUES AND APPARATUS ARE DISCLOSED FOR FORMING SUCH PACKAGES. PACKAGE CONFIGURATIONS ALSO ARE DISCLOSED PROVIDING IMPROVED RECLOSABLE CHARACTERISTICS, WHEREIN THE EMI-RIGID NATURE OF BOTH THE TOP AND THE CUP ARE UTILIZED TO ENABLE THE RECLOSED TOP TO BE HELD SECURELY IN PLACE.
Inventors
- 👤 R Mahaffy
- 👤 J Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:59
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/28; B65D75/30; B65D75/32; B65D75/321; B65D75/322
Claims Analysis
Total Claims: 0
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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) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |