US3812993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container cover
Assignee: Daiwa Can Co Ltd
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Filing: 1972-01-17
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Granted: 1974-05-28
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Expires: 1992-01-17
Abstract
Abstract A cover for a container is disclosed having an open top with a flanged or beaded portion. It includes a container covering panel having an encircling skirt portion depending from the periphery thereof, and a tab projecting outwardly from said shirt. A score line is marked on the skirt portion such that when it is desired to open the container, the user has only to grasp the container with one hand and pull the tab away from the container along the score line with the other hand without changing the grasping position of the former hand. The circumferential length of the score line may be from about 185* to 240* of the encircling expanse of the skirt.
Inventors
- 👤 T Yoshioka
- 👤 S Nishiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:50
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
In a container having an open top and a bead portion in the periphery thereof encircling said open top, a cover having a central panel portion and a skirt portion depending from the periphery of said panel portion and closely engaging the bead portion of said container top, said skirt portion having a tab projecting outwardly therefrom, said tab having an inner edge adjacent said skirt, said skirt portion having a partial score line marked thereon, said score line starting from a point at which the inner edge of the tab and the circumferential edge of the skirt portion meet, then traveling inwardly for a short distance and thence proceeding in a direction concentric with said circumferential edge of the skirt for a distance which extends between about 185* and about 240* as expressed by the angle around the center of the panel portion and then turning outwardly to a point in said circumferential edge of the skirt, said skirt portion having a further partial score line marked thereon, said further score line lying in the extension of the course of said above-mentioned score line but being discontinuous therewith.
Claim 2
Dependent Claim
189 words
In a container having an open top and a bead portion in the periphery thereof encircling said open top, a cover having a central panel portion and a skirt portion depending from the periphery of said panel portion and closely engaging the bead portion of said container top, said skirt portion having a tab projecting outwardly therefrom, said tab having an inner edge adjacent said skirt, said skirt portion having a partial score line marked thereon, said score line starting from a point at which the inner edge of the tab and the circumferential edge of the skirt portion meet, then traveling inwardly for a short distance and thence proceeding in a direction concentric with said circumferential edge of the skirt for a distance which extends between about 185* and about 240* as expressed by the angle around the center of the panel portion and then turning outwardly to a point in said circumferential edge of the skirt, said skirt portion having a further partial score line marked thereon, said further score line lying in the extension of the course of said above-mentioned score line but being discontinuous therewith.
References Cited (Backward Citations)
US3186572A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |