US3750362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of packaging granular material
Assignee: Standard Packaging Corp
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Filing: 1972-03-29
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Granted: 1973-08-07
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Expires: 1992-03-29
Abstract
Abstract A package for a granular material includes a bottom package member and a top package member. A gas-permeable intermediate package member is disposed between the bottom package member and the top package member to facilitate the evacuation of the package by retaining the granular material in the package during such evacuation. A method is provided for packaging the granular material which includes fully sealing the gas-permeable intermediate package member to the bottom package member and thereafter evacuating the package through the face of the gaspermeable intermediate package member.
Inventors
- 👤 A Kishpaugh
- 👤 D Hagen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:03
CPC Classifications
B; B65; B65D; B65D77/00; B65D77/10; B65D77/20; B65D77/2024; B65B; B65B31/00; B65B31/02; B65B31/021
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
80 words
A method for packaging a granular material from a bottom package member, a gas-permeable intermediate package member and a top package member comprising the steps of loading said granular material into said bottom package member, fully sealing said gaspermeable intermediate package member to said bottom package member to form a package having a gas-permeable face, thereafter evacuating said package through said gas-permeable face and while evacuated completing said package by sealing said top package member to said bottom package member.
Claim 2
Independent Claim
80 words
A method for packaging a granular material from a bottom package member, a gas-permeable intermediate package member and a top package member comprising the steps of loading said granular material into said bottom package member, fully sealing said gaspermeable intermediate package member to said bottom package member to form a package having a gas-permeable face, thereafter evacuating said package through said gas-permeable face and while evacuated completing said package by sealing said top package member to said bottom package member.
Claim 3
Dependent Claim
38 words
The invention according to claim 1 further comprising the steps of placing said top package member over said gas-permeable face and partially sealing said top package member to said bottom package member prior to evacuation of said package.
Claim 4
Dependent Claim
19 words
The invention according to claim 2 wherein Evacuation is accomplished through an unsealed portion of said top package member.
Claim 5
Dependent Claim
20 words
The invention according to claim 1 wherein said top package member is also sealed to said gas-permeable intermediate package member.
Claim 6
Independent Claim
105 words
A method for packaging a granular material comprising the steps of forming a bottom package member having a material-receiving cavity, depositing said granular material in said material-receiving cavity, overlying said granular material with a gas-permeable intermediate package member, fully sealing said gas-permeable intermediate package member to said bottom package member, thereafter overlying said gas-permeable intermediate package member with a top package member, partially sealing said top package member to said bottom package member, evacuating said materail-receiving cavity through said gas-permeable intermediate package member and through the unsealed portion of said top package member, and fully sealing said top package member to said bottom package member.
Claim 7
Independent Claim
105 words
A method for packaging a granular material comprising the steps of forming a bottom package member having a material-receiving cavity, depositing said granular material in said material-receiving cavity, overlying said granular material with a gas-permeable intermediate package member, fully sealing said gas-permeable intermediate package member to said bottom package member, thereafter overlying said gas-permeable intermediate package member with a top package member, partially sealing said top package member to said bottom package member, evacuating said materail-receiving cavity through said gas-permeable intermediate package member and through the unsealed portion of said top package member, and fully sealing said top package member to said bottom package member.
Claim 8
Dependent Claim
22 words
The invention according to claim 5 further comprising the step of sealing said top package member to said gas-permeable intermediate package member.
Claim 9
Independent Claim
79 words
A method for packaging a granular material from a bottom package member, a gas-permeable intermediate package member and a top package member comprising the steps of loading said granular material into said bottom package member, fully sealing said gas-permeable intermediate package member to said bottom package member to form a package having a gas-permeable face, thereafter gas flushing said package through said gas-permeable face and completing said package by sealing said top package member to said bottom package member.
Claim 10
Independent Claim
79 words
A method for packaging a granular material from a bottom package member, a gas-permeable intermediate package member and a top package member comprising the steps of loading said granular material into said bottom package member, fully sealing said gas-permeable intermediate package member to said bottom package member to form a package having a gas-permeable face, thereafter gas flushing said package through said gas-permeable face and completing said package by sealing said top package member to said bottom package member.
Claim 11
Dependent Claim
27 words
The invention according to claim 7 wherein said gas flushing of said package further includes the step of withdrawing air from said package through said gas-permeable face.
References Cited (Backward Citations)
US3311517A
Cited
US3673760A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |