US3871550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Push-in easy opening container
Assignee: Continental Can Co Inc
•
Filing: 1973-05-29
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Granted: 1975-03-18
•
Expires: 1993-05-29
Abstract
Abstract An easy opening end closure for a container in which the end closure includes a panel having a pre-cut pour opening. The pour opening is sealed by a plastic closure having a portion permanently bound to the underside of the end. A remaining portion is releasably adhered to the underside so that upon downward pressure on the closure, it is released and hinges about the permanently bonded portion.
Inventors
- 👤 Wayne T Chiappe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:04
CPC Classifications
B; B65; B65D; B65D17/00; B65D17/28; B65D17/34; B65D17/36; B65D17/50; B65D17/506
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
107 words
An easy opening end closure for a container comprising a metal panel, an opening formed in said panel, a closure made from plastic material underlying said opening and having a closure flap, flexible means providing an attachment band hingedly attached to said flap and permanently bonded to the underside of said panel and marginal edge portions about said flap releasably bonded to the underside of said panel about said opening, and said closure having a relatively inflexible thick button portion at one end and having a relatively thin flexible body portion between the band and button and said button projecting upwardly through the opening above the panel.
Claim 2
Dependent Claim
107 words
An easy opening end closure for a container comprising a metal panel, an opening formed in said panel, a closure made from plastic material underlying said opening and having a closure flap, flexible means providing an attachment band hingedly attached to said flap and permanently bonded to the underside of said panel and marginal edge portions about said flap releasably bonded to the underside of said panel about said opening, and said closure having a relatively inflexible thick button portion at one end and having a relatively thin flexible body portion between the band and button and said button projecting upwardly through the opening above the panel.
Claim 3
Dependent Claim
109 words
An easy opening end closure for a container comprising a metal panel, an opening formed in said panel, a closure made from plastic material underlying said opening and having a closure flap, flexible means providing an attachment band hingedly attached to said flap and permanently bonded to the underside of said panel and marginal edge portions about said flap releasably bonded to the underside of said panel about said opening, and a collar made from plastic material bonded about the edge of said opening to cover said edge, and said closure flap having a groove in alignment with said opening nesting a lower edge portion of the collar therein.
Claim 4
Dependent Claim
109 words
An easy opening end closure for a container comprising a metal panel, an opening formed in said panel, a closure made from plastic material underlying said opening and having a closure flap, flexible means providing an attachment band hingedly attached to said flap and permanently bonded to the underside of said panel and marginal edge portions about said flap releasably bonded to the underside of said panel about said opening, and a collar made from plastic material bonded about the edge of said opening to cover said edge, and said closure flap having a groove in alignment with said opening nesting a lower edge portion of the collar therein.
References Cited (Backward Citations)
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Cited
US2147004A
Cited
US3217951A
Cited
US3261497A
Cited
US3731835A
Cited
US3779417A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |