US3741431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container with snap-open cover
Assignee: Individual
•
Filing: 1971-04-01
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Granted: 1973-06-26
•
Expires: 1991-04-01
Abstract
Abstract A container having a snap-open cover in which the cover is provided with a skirt having a single arcuate cut-away portion, curled edge for strengthening and improved fulcrum zones joining the cut-away portion and curled edge which cooperates with a flattened peripheral ledge on the container bottom to facilitate opening in a snap action.
Inventors
- 👤 R Burdick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:35
CPC Classifications
B; B65; B65D; B65D43/00; B65D43/02; B65D43/0202; B65D43/0214; B65D43/0222; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00027; B65D2543/00064; B65D2543/00074; B65D2543/00092; B65D2543/00259; B65D2543/00277; B65D2543/00342; B65D2543/00398; B65D2543/00416; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00527; B65D2543/00537; B65D2543/00824; B65D2543/00888; B65D2543/00916
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
217 words
In a container of the character described, adapted for use in containing semi-solid material such as shoe polish and the like, having a cover portion and a bottom portion: said bottom portion including a circular bottom, an upwardly extending side wall, a top beaded edge of said side wall, and an outwardly formed flattened peripheral ledge intermediate said side wall; said cover portion including a top surface, a downwardly extending resilient skirt joined to said top surface at the periphery thereof, a single arcuate cut-away portion of said skirt, a curled portion of said skirt formed with bending resistant curled edges, uncurled fulcrum zones joining said cut-away portion and said curled portion and depending below said curled portion, said skirt sealingly embracing said beaded edge with each of said fulcrum zones and a contact zone of said curled portion opposite said cut-away portion abutting said flattened ledge in the closed position of said cover, said depending fulcrum zones providing spaces between the upper surface of said ledge and said curled portion respectively adjacent each of said fulcrum zones in the closed position of said cover, whereby downward pressure on said cover above said cut-away portion will unseat said cover as said fulcrum zones are pivoted on said ledge and said contact zone is disengaged of said bead.
Claim 2
Dependent Claim
217 words
In a container of the character described, adapted for use in containing semi-solid material such as shoe polish and the like, having a cover portion and a bottom portion: said bottom portion including a circular bottom, an upwardly extending side wall, a top beaded edge of said side wall, and an outwardly formed flattened peripheral ledge intermediate said side wall; said cover portion including a top surface, a downwardly extending resilient skirt joined to said top surface at the periphery thereof, a single arcuate cut-away portion of said skirt, a curled portion of said skirt formed with bending resistant curled edges, uncurled fulcrum zones joining said cut-away portion and said curled portion and depending below said curled portion, said skirt sealingly embracing said beaded edge with each of said fulcrum zones and a contact zone of said curled portion opposite said cut-away portion abutting said flattened ledge in the closed position of said cover, said depending fulcrum zones providing spaces between the upper surface of said ledge and said curled portion respectively adjacent each of said fulcrum zones in the closed position of said cover, whereby downward pressure on said cover above said cut-away portion will unseat said cover as said fulcrum zones are pivoted on said ledge and said contact zone is disengaged of said bead.
Claim 3
Dependent Claim
254 words
A cover for a container adapted for use in containing semi-solid material such as shoe polish and the like, said cover to cooperate with a bottom portion including a circular bottom, an upwardly extending side wall, a top beaded edge of said side wall, and an outwardly formed flattened peripheraL ledge intermediate said side wall; said cover portion including a top surface, a downwardly extending resilient skirt joined to said top surface at the periphery thereof, a single arcuate cut-away portion of said skirt, a curled portion of said skirt formed with bending resistant curled edges, uncurled fulcrum zones joining said cut-away portion and said curled portion and depending below said curled portion, said skirt sealingly embracing said beaded edge with each of said fulcrum zones and a contact zone of said curled portion opposite said cut-away portion abutting said flattened ledge in the closed position of said cover, said depending fulcrum zones providing spaces between the upper surface of said ledge and said curled portion respectively adjacent each of said fulcrum zones in the closed position of said cover, whereby downward pressure on said cover above said cut-away portion will unseat said cover as said fulcrum zones are pivoted on said ledge and said contact zone is disengaged of said bead, and said cut-away portion extending over a distance of said skirt which is less than one-half the circumference of the skirt presenting a curled edge over the major portion thereof reducing scraping of adjacent covers during storage, shipping and in the hopper.
Claim 4
Dependent Claim
254 words
A cover for a container adapted for use in containing semi-solid material such as shoe polish and the like, said cover to cooperate with a bottom portion including a circular bottom, an upwardly extending side wall, a top beaded edge of said side wall, and an outwardly formed flattened peripheraL ledge intermediate said side wall; said cover portion including a top surface, a downwardly extending resilient skirt joined to said top surface at the periphery thereof, a single arcuate cut-away portion of said skirt, a curled portion of said skirt formed with bending resistant curled edges, uncurled fulcrum zones joining said cut-away portion and said curled portion and depending below said curled portion, said skirt sealingly embracing said beaded edge with each of said fulcrum zones and a contact zone of said curled portion opposite said cut-away portion abutting said flattened ledge in the closed position of said cover, said depending fulcrum zones providing spaces between the upper surface of said ledge and said curled portion respectively adjacent each of said fulcrum zones in the closed position of said cover, whereby downward pressure on said cover above said cut-away portion will unseat said cover as said fulcrum zones are pivoted on said ledge and said contact zone is disengaged of said bead, and said cut-away portion extending over a distance of said skirt which is less than one-half the circumference of the skirt presenting a curled edge over the major portion thereof reducing scraping of adjacent covers during storage, shipping and in the hopper.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |