Patent US2887933A successfully refreshed from Google Patents.
US2887933A
Expired / Lapsed
US
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Apparatus for forming containers
Assignee: Bergstein Packaging Trust
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Filing: 1955-05-26
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Granted: 1959-05-26
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Expires: 1975-05-26
Abstract
No abstract record available.
Inventors
- 👤 Frank D Bergstein
- 👤 Back Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:11
CPC Classifications
B; B31; B31B; B31B50/00; B31B50/26; B31B50/28; B31B50/004; B31B50/30; B31B50/32; B31B50/322
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1346827A
Cited
US1257949A
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US1933180A
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US2018621A
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US2201177A
Cited
US2363425A
Cited
US2585031A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |