Patent US3605570A successfully refreshed from Google Patents.
US3605570A
Expired / Lapsed
US
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Method of making a plastic bag with handle
Assignee: Amcor Flexibles North America Inc
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Filing: 1969-12-29
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Granted: 1971-09-20
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Expires: 1989-12-29
Abstract
Abstract A PLASTIC BAG HAVING A BOTTOM CLOSURE WHICH MAY BE A VALVED DIAMOND-FOLD OR SATCHEL BOTTOM CLOSURE) AND A DIAMOND-FOLD OR SATCHEL TOP CLOSURE IN WHICH THE SIDE FLAPS OF THE TOP CLOSURE ARE PROVIDED WITH A PAIR OF SLITS EXTENDING ALONGSIDE ONE ANOTHER, THE PORTION OF THE SIDE FLAPS BETWEEN THESE SLITS BEING FREE OF THE UNDERLYING PORTION OF THE TOP CLOSURE AND CONSTITUTING A HANDLE, AND A METHOD OF MAKING SUCH BAGS INVOLVING FORMATION OF THE SLITS IN THE SIDE FLAPS AFTER THEY HAVE BEEN FOLDED OVER AND SEALED TOGETHER.
Inventors
- 👤 Ralph C Goodwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:59
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/06; B65D33/065; B65D31/00; B65D31/14; B65D31/142; Y; Y10; Y10S; Y10S493/00; Y10S493/916; Y10S493/926
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |