US3580485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Containers
Assignee: Monsanto Chemicals Ltd
•
Filing: 1969-05-07
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Granted: 1971-05-25
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Expires: 1989-05-07
Abstract
Abstract A packaging container which includes a flanged body sealed with a lid, the flange having an elongated depression formed therein which facilitates opening the container by pressing a portion of the lid into the depression to puncture it.
Inventors
- 👤 Robert Leonard Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:07
CPC Classifications
B; B65; B65D; B65D77/00; B65D77/10; B65D77/20; B65D77/2024; B65D77/2028; B65D2577/00; B65D2577/10; B65D2577/20; B65D2577/2066; Y; Y10; Y10S; Y10S229/00; Y10S229/927
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
103 words
A packaging container formed from thermoplastic sheet material comprising a body portion having a continuous imperforate flange extending around the periphery of the body portion, the flange having a channel formed therein, a lid sealed to an outer portion of the flange, said lid being sealed discontinuously to another portion of the flange situated between the channel and the body portion of the package, thereby facilitating opening the package by pressing the lid into the channel to puncture it and then tearing it from the puncture through the discontinuous portion of the seal to the part of the lid covering the body portion.
Claim 2
Dependent Claim
103 words
A packaging container formed from thermoplastic sheet material comprising a body portion having a continuous imperforate flange extending around the periphery of the body portion, the flange having a channel formed therein, a lid sealed to an outer portion of the flange, said lid being sealed discontinuously to another portion of the flange situated between the channel and the body portion of the package, thereby facilitating opening the package by pressing the lid into the channel to puncture it and then tearing it from the puncture through the discontinuous portion of the seal to the part of the lid covering the body portion.
Claim 3
Dependent Claim
47 words
The container of claim 1 wherein the lid is sealed continuously to the outer portion of the flange along the full periphery thereof. 3 The container of claim 1 wherein the thermoplastic sheet material from which the lid is made is a transparent biaxially oriented synthetic resin.
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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |