Patent US3315872A successfully refreshed from Google Patents.
US3315872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetically sealed plastic containers
Assignee: Dow Chemical Co
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Filing: 1964-11-02
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Granted: 1967-04-25
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Expires: 1984-11-02
Abstract
No abstract record available.
Inventors
- 👤 Anthony J Carbone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:09
CPC Classifications
B; B65; B65D; B65D43/00; B65D43/02; B65D43/0202; B65D43/0204; B65D43/021; B29; B29C; B29C65/00; B29C65/02; B29C65/40; B29C65/405; B29C66/00; B29C66/50; B29C66/51; B29C66/54; B29C66/542; B29C66/545; B29C66/65; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/00074; B65D2543/00092; B65D2543/00259; B65D2543/00296; B65D2543/00425; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00509; B65D2543/00537; B65D2543/00555; B65D2543/00592; B65D2543/00601; B65D2543/00611; B65D2543/0062; B65D2543/00675; B65D2543/00685; B65D2543/00712; B65D2543/00722; B65D2543/00731; B65D2543/0074; B65D2543/00787; B65D2543/00796; B65D2543/00953; B65D2543/00962; B65D2543/00972
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A HERMETICALLY SEALED CONTAINER COMPRISING (1) A POLYSTYRENE, UNITARY CONTAINER BODY HAVING AN OPENING, (2) A POLYSTYRENE UNITARY CLOSURE ADAPTED TO CLOSE SAID OPENING BY A SNAP-FIT MEANS COMPRISING MATING CONVEX PORTIONS AND CONCAVE PORTIONS ON SAID CONTAINER BODY AND ON SAID CLOSURE WHEREBY SAID CONTAINER BODY OR SAID CLOSURE IS SUBJECTED TO A SPRINGING ACTION WHEN SAID CLOSURE IS APPLIED TO, AND REMOVED FROM SAID CONTAINER BODY, AND (3) A HERMETIC SEAL CONSISTING ESSENTIALLY OF AN ETHYLENE/VINYL ACETATE COPOLYMER COMPOSITION BETWEEN SAID CONTAINER BODY AND SAID CLOSURE IN THE ZONE OF SAID SNAPFIT MEANS.
Claim 2
Dependent Claim
95 words
A HERMETICALLY SEALED CONTAINER COMPRISING (1) A POLYSTYRENE, UNITARY CONTAINER BODY HAVING AN OPENING, (2) A POLYSTYRENE UNITARY CLOSURE ADAPTED TO CLOSE SAID OPENING BY A SNAP-FIT MEANS COMPRISING MATING CONVEX PORTIONS AND CONCAVE PORTIONS ON SAID CONTAINER BODY AND ON SAID CLOSURE WHEREBY SAID CONTAINER BODY OR SAID CLOSURE IS SUBJECTED TO A SPRINGING ACTION WHEN SAID CLOSURE IS APPLIED TO, AND REMOVED FROM SAID CONTAINER BODY, AND (3) A HERMETIC SEAL CONSISTING ESSENTIALLY OF AN ETHYLENE/VINYL ACETATE COPOLYMER COMPOSITION BETWEEN SAID CONTAINER BODY AND SAID CLOSURE IN THE ZONE OF SAID SNAPFIT MEANS.
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) | 1970-04-24 | 1970-10-24 | 1971-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-24 | 1974-10-24 | 1975-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-24 | 1978-10-24 | 1979-04-25 | $7700.00 | Window Closed / Lapsed |