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US2954915A
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Sanitary-opening bags
Assignee: Central States Paper and Bag Co
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Filing: 1957-10-01
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Granted: 1960-10-04
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Expires: 1977-10-01
Abstract
No abstract record available.
Inventors
- 👤 Clarence J Poepper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:18
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/16; B65D33/18; B65D33/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1197127A
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US1866241A
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US1889001A
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US1983291A
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US2215989A
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US2653751A
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US2661143A
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US2825497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |