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US2443293A
Expired / Lapsed
US
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Means for maintaining and conveying cartons
Assignee: Individual
•
Filing: 1942-07-13
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Granted: 1948-06-15
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Expires: 1962-07-13
Abstract
No abstract record available.
Inventors
- 👤 Bergstein Samuel
- 👤 Louis J Van Guelpen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:33
CPC Classifications
B; B31; B31B; B31B50/00; B31B50/02; B31B50/022; B31B70/00; B31B2160/00; B31B2160/10; B31B50/004; B31B50/0044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2277289A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-15 | 1951-12-15 | 1952-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-15 | 1955-12-15 | 1956-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-15 | 1959-12-15 | 1960-06-15 | $7700.00 | Window Closed / Lapsed |