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US3734394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible package with double layered walls
Assignee: BRH Corp
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Filing: 1971-08-12
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Granted: 1973-05-22
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Expires: 1991-08-12
Abstract
Abstract A package having front and back panels each formed of a double layer construction in which the space between the inner and outer layers of each panel is circumscribed by marginal seams so that material introduced into the package through an open end cannot be deposited in the space between the inner and outer layer of each panel.
Inventors
- 👤 D Dooley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:15
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/04; B65D75/20; B65D31/00; B65D31/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
A flexible package comprising: a front panel made of two separate layers of flexible package material which form an air space between the layers, which air space is enclosed along both side edges and the top end of the front panel; a rear panel made of two separate layers of flexible package material which form an air space between the layers, which air space is enclosed along both side edges and the top end of the back panel; the side edges of said front and rear panels being fastened together by a pair of spaced seams wHich enclose the air spaces between the layers of said front and rear panels; the air space between the layers of the front panel being enclosed by a transverse fold along the top end, the air space between the layers of the rear panel being enclosed by a transverse seam along the top end of the rear panel, and the bottom ends of the front and rear panels being joined to one another by a transverse fold; and wherein the corresponding side edges and bottom ends of the front and rear panels are fastened together to form a package.
Claim 2
Dependent Claim
195 words
A flexible package comprising: a front panel made of two separate layers of flexible package material which form an air space between the layers, which air space is enclosed along both side edges and the top end of the front panel; a rear panel made of two separate layers of flexible package material which form an air space between the layers, which air space is enclosed along both side edges and the top end of the back panel; the side edges of said front and rear panels being fastened together by a pair of spaced seams wHich enclose the air spaces between the layers of said front and rear panels; the air space between the layers of the front panel being enclosed by a transverse fold along the top end, the air space between the layers of the rear panel being enclosed by a transverse seam along the top end of the rear panel, and the bottom ends of the front and rear panels being joined to one another by a transverse fold; and wherein the corresponding side edges and bottom ends of the front and rear panels are fastened together to form a package.
References Cited (Backward Citations)
US2344369A
Cited
US2721691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |