Patent US3302859A successfully refreshed from Google Patents.
US3302859A
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Assignee: Amcor Flexibles North America Inc
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Filing: 1964-12-21
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Granted: 1967-02-07
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Expires: 1984-12-21
Abstract
No abstract record available.
Inventors
- 👤 Ray P Perry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:56
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/01; B29; B29C; B29C53/00; B29C53/36; B29C53/38; B29C53/48; B29C2793/00; B29C2793/0045; B29L; B29L2031/00; B29L2031/712; B29L2031/7128; B31; B31B; B31B2155/00; B31B2155/001; B31B2155/0012; B31B70/00; B31B70/60; B31B70/68; B31B70/74; B31B70/92; B31B70/94; B31B70/946
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A BAG FORMED FROM A TUBE HAVING A LONGITUDINAL SEAM COMPRISING OVERLAPPING MARGINS OF THE MATERIAL FROM WHICH THE TUBE IS FORMED, SAID MARGINS BEING SECURED TOGETHER THROUGHOUT THEIR LENGTH, ONE OF SAID MARGINS HAVING A SERIES OF VENTS THEREIN FOR ESCAPE OF AIR FROM THE BAG, SAID VENTS BEING NORMALLY COVERED BY THE OTHER MARGIN.
Claim 2
Dependent Claim
56 words
A BAG FORMED FROM A TUBE HAVING A LONGITUDINAL SEAM COMPRISING OVERLAPPING MARGINS OF THE MATERIAL FROM WHICH THE TUBE IS FORMED, SAID MARGINS BEING SECURED TOGETHER THROUGHOUT THEIR LENGTH, ONE OF SAID MARGINS HAVING A SERIES OF VENTS THEREIN FOR ESCAPE OF AIR FROM THE BAG, SAID VENTS BEING NORMALLY COVERED BY THE OTHER MARGIN.
References Cited (Backward Citations)
US2997224A
Cited
US3237844A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |