US3749276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container and closure
Assignee: SWEETHEART PROPERTIES Inc
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Filing: 1970-01-14
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Granted: 1973-07-31
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Expires: 1990-01-14
Abstract
Abstract A thin wall plastic container having a rim-type nesting ring which also serves as a lid seat and includes protuberances spaced about the rim for centering a paper tab-type lid so that it may be snapped in place into the lid seat merely by the application of downward pressure.
Inventors
- 👤 P Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:09
CPC Classifications
B; B65; B65D; B65D1/00; B65D1/22; B65D1/26; B65D77/00; B65D77/10; B65D77/20; B65D77/2004; B65D77/2016
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
111 words
A thin wall container comprising a bottom and a side wall, a lid seat provided adjacent the top of the side wall, said lid seat being formed as an undercut which terminates at the bottom in a lower shoulder, a flared rim provided in the side wall immediately above the lid seat and having an upwardly and outwardly directed upper shoulder which terminates at the crown of the rim, and guide means formed on the upper shoulder spaced about the rim for centering a lid to be snapped by the upper shoulder of the lid seat, said guide means comprising a plurality of spaced upwardly extending protuberances in the upper shoulder.
Claim 2
Dependent Claim
111 words
A thin wall container comprising a bottom and a side wall, a lid seat provided adjacent the top of the side wall, said lid seat being formed as an undercut which terminates at the bottom in a lower shoulder, a flared rim provided in the side wall immediately above the lid seat and having an upwardly and outwardly directed upper shoulder which terminates at the crown of the rim, and guide means formed on the upper shoulder spaced about the rim for centering a lid to be snapped by the upper shoulder of the lid seat, said guide means comprising a plurality of spaced upwardly extending protuberances in the upper shoulder.
Claim 3
Dependent Claim
44 words
A thin wall, container as described in claim 1 further characterized by said protuberances describing a circle about the flared rim, the diameter of said circle described by the inner edges of the protuberances being greater than the outer diameter of the lower shoulder.
Claim 4
Dependent Claim
39 words
A thin wall, container as described in claim 2 further characterized by the outer diameter of the lower shoulder being substantially greater than the inner diameter of the upper shoulder and together defining a nesting facility in the container.
Claim 5
Dependent Claim
71 words
In combination with the container of claim 2, a flat lid adapted to form a closure for the container, said lid having a diameter less than the diameter of the circle described by the inner edges of the protuberances and greater than the inner diameter of the upper shoulder whereby the lid will sit on the upper shoulder within the protuberances until snapped by the upper shoulder to the lid seat.
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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |