US2851211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boxes having reversible handles
Assignee: Bergstein Packaging Trust
•
Filing: 1954-03-22
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Granted: 1958-09-09
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Expires: 1974-03-22
Abstract
No abstract record available.
Inventors
- 👤 Robert M Bergstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:39
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/44; B65D5/46; B65D5/46008; B65D5/46016
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR961254A
Cited
GB191111574A
Cited
US1971197A
Cited
US1952056A
Cited
US1931330A
Cited
US2045354A
Cited
US2192131A
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US2682990A
Cited
US2603409A
Cited
US2690289A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |