Patent US2796007A successfully refreshed from Google Patents.
US2796007A
Expired / Lapsed
US
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Method of making tight cartons
Assignee: Bergstein Packaging Trust
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Filing: 1952-06-05
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Granted: 1957-06-18
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Expires: 1972-06-05
Abstract
No abstract record available.
Inventors
- 👤 Bcrgstein Frank David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:38
CPC Classifications
B; B31; B31B; B31B50/00; B31B50/74; B31B50/742; B31B50/747; B31B50/745
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2403995A
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US1083263A
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US2006689A
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US2273063A
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US2548251A
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US2604252A
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US2549048A
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US2543757A
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US2592081A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-17 | 1960-12-17 | 1961-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-17 | 1964-12-17 | 1965-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-17 | 1968-12-17 | 1969-06-18 | $7700.00 | Window Closed / Lapsed |