Patent US2804897A successfully refreshed from Google Patents.
US2804897A
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Assignee: Bemis Brothers Bag Co
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Filing: 1954-07-08
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Granted: 1957-09-03
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Expires: 1974-07-08
Abstract
No abstract record available.
Inventors
- 👤 Leon E Wunderwald
- 👤 Richard L Rosebrough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:41
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/16; A; A01; A01F; A01F25/00; A01F25/14; Y; Y10; Y10S; Y10S383/00; Y10S383/904; Y10S383/907
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US844632A
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US983492A
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US1105986A
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US1790005A
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US2254578A
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US2426195A
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US2690778A
Cited
US2638951A
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US2650401A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |