US2608331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bag opening machine with upper and lower bag forming units
Assignee: Primerica Inc
•
Filing: 1946-08-07
•
Granted: 1952-08-26
•
Expires: 1966-08-07
Abstract
No abstract record available.
Inventors
- 👤 Hoffman Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:49
CPC Classifications
B; B65; B65B; B65B67/00; B65B67/12; B65B67/1255; B65B43/00; B65B43/26; B65B43/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US803357A
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US1467323A
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US1887751A
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US1830645A
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US2042858A
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US2183081A
Cited
US2272258A
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US2317292A
Cited
US2409626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-26 | 1956-02-25 | 1956-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-26 | 1960-02-25 | 1960-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-26 | 1964-02-25 | 1964-08-26 | $7700.00 | Window Closed / Lapsed |