US3670880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Package for flexible products
Assignee: MI Drilling Fluids Co
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Filing: 1970-08-07
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Granted: 1972-06-20
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Expires: 1990-08-07
Abstract
Abstract This disclosure relates to a package construction adapted for vertical stacking and shipment in which a flexible product is enclosed within a paperboard receptacle, and a paperboard cover is disposed atop the flexible product in such a fashion that the cover rests on the product and telescopes over the receptacle such that other package constructions disposed thereabove bear upon the flexible product and not the paperboard container. The package construction contains a plastic film on its outer surfaces which is shrunk wrapped thereover and is fused thereto, thereby providing weather resistant protection for the contents thereof.
Inventors
- 👤 E Richard Burleson
- 👤 Carl H Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:44
CPC Classifications
B; B65; B65D; B65D71/00; B65D71/0088; B65D71/0092; B65D71/0096; B65D2571/00; B65D2571/00006; B65D2571/00012; B65D2571/00018; B65D2571/00037; B65D2571/00055
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
117 words
A paperboard package capable of being vertically stacked one upon another, comprising a receptacle including a substantially flat bottom and upwardly extending peripheral sidewalls, flexible products vertically disposed on said receptacle within and extending above the top edge of said sidewalls, a closure including a substantially flat top and downwardly extending peripheral sidewalls, the top of the closure resting on the flexible products, at least the outer surfaces of said receptacle and closure having a fusible and weather resistant coating thereon, the sidewalls of the closure overlapping only a portion of the sidewalls of the receptacle and a heat shrunk synthetic film sealed to the coating on at least the outer surfaces of the top and sidewalls.
Claim 2
Dependent Claim
117 words
A paperboard package capable of being vertically stacked one upon another, comprising a receptacle including a substantially flat bottom and upwardly extending peripheral sidewalls, flexible products vertically disposed on said receptacle within and extending above the top edge of said sidewalls, a closure including a substantially flat top and downwardly extending peripheral sidewalls, the top of the closure resting on the flexible products, at least the outer surfaces of said receptacle and closure having a fusible and weather resistant coating thereon, the sidewalls of the closure overlapping only a portion of the sidewalls of the receptacle and a heat shrunk synthetic film sealed to the coating on at least the outer surfaces of the top and sidewalls.
Claim 3
Dependent Claim
10 words
Package of claim 1, which contains an inflexible pallet thereunder.
Claim 4
Dependent Claim
16 words
Package of claim 1, in which the coating is a mixture of paraffin wax and polyethylene.
Claim 5
Dependent Claim
11 words
Package of claim 1, in which the film is polyvinyl chloride.
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |