Patent US3858756A successfully refreshed from Google Patents.
US3858756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vented container and lid
Assignee: Alan IW Frank Corp
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Filing: 1972-12-12
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Granted: 1975-01-07
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Expires: 1992-12-12
Abstract
Abstract A vented container comprising an open-topped container and a lid applied to the open top of the container, the lid being sealed to the container wall at a circumferential zone except that at at least one localized portion of said circumferential zone the lid is spaced from the container wall to permit vapor to pass upwardly through said circumferential zone, the lid above said circumferential zone cooperating with the container wall to confine liquid but having vent means for venting to the outside vapor which has passed upwardly through said circumferential zone. The lid is preferably shaped to lie in contact with the container wall throughout a lower circumferential zone and an upper circumferential zone providing a vapor receiving annulus between said zones, except that at at least one localized portion of the lower circumferential zone the lid is spaced from the container wall to permit vapor to pass upwardly through the lower circumferential zone into the vapor receiving annulus, and vent means are provided for venting to the outside vapor from the vapor receiving annulus. Desirably the lid lies in normal contact with the container wall throughout the upper circumferential zone but is distendable to permit vapor from the vapor receiving annulus to pass upwardly through the upper circumferential zone. The lid preferably has a vent hole to the outside above the upper circumferential zone.
Inventors
- 👤 Edward W Fulton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:44
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/16; B65D51/1633; B65D51/1661; B65D51/1666; B65D43/00; B65D43/02; B65D43/0202; B65D43/0214; B65D43/0218; B65D2205/00; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/00074; B65D2543/00092; B65D2543/00259; B65D2543/00296; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00509; B65D2543/00537; B65D2543/00555
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
136 words
A vented polystyrene container comprising an open-topped container and a separate lid applied to the open top of the container, the lid being shaped to lie in contact with the container wall throughout a lower circumferential zone and an upper circumferential zone providing a vapor receiving annulus between said zones, except that at least one localized portion of the lower circumferential zone the lid is spaced from the container wall to permit vapor to pass upwardly through the lower circumferential zone into the vapor receiving annulus, vent means being provided for venting to the outside vapor from the vapor receiving annulus, the separate lid lying in face-to-face contact with the container wall throughout the upper circumferential zone but being distendable to permit vapor from the vapor receiving annulus to pass upwardly through the upper circumferential zone.
Claim 2
Dependent Claim
136 words
A vented polystyrene container comprising an open-topped container and a separate lid applied to the open top of the container, the lid being shaped to lie in contact with the container wall throughout a lower circumferential zone and an upper circumferential zone providing a vapor receiving annulus between said zones, except that at least one localized portion of the lower circumferential zone the lid is spaced from the container wall to permit vapor to pass upwardly through the lower circumferential zone into the vapor receiving annulus, vent means being provided for venting to the outside vapor from the vapor receiving annulus, the separate lid lying in face-to-face contact with the container wall throughout the upper circumferential zone but being distendable to permit vapor from the vapor receiving annulus to pass upwardly through the upper circumferential zone.
Claim 3
Dependent Claim
26 words
A vented polystyrene container as claimed in claim 1 in which the separate lid has a vent hole to the outside above the upper circumferential zone.
Claim 4
Dependent Claim
131 words
A polystyrene lid for an open-topped polystyrene container separate from the container having a part fitting over the lip of the container and a part lying opposite the container wall below the lip, the second mentioned part having a circumferential zone adapted to be sealed to the container wall except that at least one localized portion of said circumferential zone the second mentioned part is shaped to provide a space between such part and the container wall to permit vapor to pass upwardly therethrough, the second mentioned part of the lid above said circumferential zone being shaped to lie in face-to-face contact with the container wall to confine liquid, but the lid having means for venting to the outside vapor which has passed upwardly through said space at said circumferential zone.
Claim 5
Dependent Claim
131 words
A polystyrene lid for an open-topped polystyrene container separate from the container having a part fitting over the lip of the container and a part lying opposite the container wall below the lip, the second mentioned part having a circumferential zone adapted to be sealed to the container wall except that at least one localized portion of said circumferential zone the second mentioned part is shaped to provide a space between such part and the container wall to permit vapor to pass upwardly therethrough, the second mentioned part of the lid above said circumferential zone being shaped to lie in face-to-face contact with the container wall to confine liquid, but the lid having means for venting to the outside vapor which has passed upwardly through said space at said circumferential zone.
Claim 6
Dependent Claim
91 words
A polystyrene lid for an open-topped polystyrene container separate from the container shaped to contact the container wall throughout a lower circumferential zone and an upper circumferential zone providing a vapor receiving annulus between said zones, except that at least one localized portion of the lower circumferential zone the lid is shaped to be spaced from the container wall to permit vapor to pass upwardly through the lower circumferential zone into the vapor receiving annulus, the lid having vent means for venting to the outside vapor from the vapor receiving annulus.
Claim 7
Dependent Claim
91 words
A polystyrene lid for an open-topped polystyrene container separate from the container shaped to contact the container wall throughout a lower circumferential zone and an upper circumferential zone providing a vapor receiving annulus between said zones, except that at least one localized portion of the lower circumferential zone the lid is shaped to be spaced from the container wall to permit vapor to pass upwardly through the lower circumferential zone into the vapor receiving annulus, the lid having vent means for venting to the outside vapor from the vapor receiving annulus.
Claim 8
Dependent Claim
56 words
A polystyrene lid for an open-topped polystyrene container separate from the container as claimed in claim 4 in which the lid is shaped to lie in face-to-face contact with the container wall throughout the upper circumferential zone but is distendable to permit vapor from the vapor receiving annulus to pass upwardly through the upper circumferential zone.
Claim 9
Dependent Claim
33 words
A polystyrene lid for an open-topped polystyrene container separate from the container as claimed in claim 5 in which the lid has a vent hole to the outside above the upper circumferential zone.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |