Patent US4677809A successfully refreshed from Google Patents.
US4677809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making packing material with anti-static coating
Assignee: Raytheon Co
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Filing: 1986-06-03
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Granted: 1987-07-07
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Expires: 2006-06-03
Abstract
Abstract A rigid packaging material having a coating of heat-sealable, anti-static plastic. A fiberboard sheet substrate is coated with a lamina of polyethylene made electrostatic-free by the addition of an organic anti-static compound. When skin-packaged with a film of heat sealable, anti-static plastic material, a static-sensitive item is completely enclosed by a static-free barrier package.
Inventors
- 👤 Stuart G. Long
- 👤 Michael J. Maciocia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:36
CPC Classifications
B; B05; B05D; B05D5/00; B05D5/12; B32; B32B; B32B27/00; B32B27/30; Y; Y10; Y10T; Y10T428/00; Y10T428/31504
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
95 words
A method of making a sealed, anti-static container, comprising the step of employing a skinpackaging procedure to heat seal a sealing sheet of flexible, thermoplastic, electrostatic-free material to a flat, uniplanar sheet of backing material wherein said sheet of backing material comprises a first layer of substantially rigid substrate material and a second layer including an organic plastic heat-sealable material formed on said first layer according to a predetermined manufacturing method separate from said skin-packaging method, said predetermined manufacturing method including the step of adding a tertiary animal fatty amine to said sealing sheet and
Claim 2
Independent Claim
95 words
A method of making a sealed, anti-static container, comprising the step of employing a skinpackaging procedure to heat seal a sealing sheet of flexible, thermoplastic, electrostatic-free material to a flat, uniplanar sheet of backing material wherein said sheet of backing material comprises a first layer of substantially rigid substrate material and a second layer including an organic plastic heat-sealable material formed on said first layer according to a predetermined manufacturing method separate from said skin-packaging method, said predetermined manufacturing method including the step of adding a tertiary animal fatty amine to said sealing sheet and
Claim 3
Dependent Claim
139 words
In a skin-packaging procedure wherein an item is to be skin-packaged by heating a heat-sealable plastic film to a semi-molten state, drawing a vacuum between the film, the item to be packaged, and a coated substrate, and then drawing the film over and around the item to form a heatsealable bond with the coated substrate, the improvement comprising: the step of forming said coated substrate according to a predetermined manufacturing procedure separate from and preceding said skin-packaging procedure from a flat, uniplanar sheet of backing material including a first uniplanar layer of substantially rigid substrate material and a second layer including an organic plastic heatsealable material formed on said predetermined manufacturing procedure including the step of adding a tertiary animal fatty amine to; and the step of making said plastic film electrostatic-free by addition thereto of an anti-static material.
Claim 4
Dependent Claim
139 words
In a skin-packaging procedure wherein an item is to be skin-packaged by heating a heat-sealable plastic film to a semi-molten state, drawing a vacuum between the film, the item to be packaged, and a coated substrate, and then drawing the film over and around the item to form a heatsealable bond with the coated substrate, the improvement comprising: the step of forming said coated substrate according to a predetermined manufacturing procedure separate from and preceding said skin-packaging procedure from a flat, uniplanar sheet of backing material including a first uniplanar layer of substantially rigid substrate material and a second layer including an organic plastic heatsealable material formed on said predetermined manufacturing procedure including the step of adding a tertiary animal fatty amine to; and the step of making said plastic film electrostatic-free by addition thereto of an anti-static material.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-07-06 | 1991-01-05 | 1991-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-06 | 1995-01-05 | 1995-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-06 | 1999-01-05 | 1999-07-07 | $7700.00 | Window Closed / Lapsed |