US2765715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carton opening mechanism
Assignee: FMC Corp
•
Filing: 1951-08-21
•
Granted: 1956-10-09
•
Expires: 1971-08-21
Abstract
No abstract record available.
Inventors
- 👤 Charles E Kerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:00
CPC Classifications
B; B31; B31B; B31B50/00; B31B50/74; B31B50/76; B31B50/78; B65; B65B; B65B7/00; B65B7/16; B65B7/20; B31B2100/00; B31B2120/00; B31B2120/30; B31B50/784
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1313975A
Cited
US1091268A
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US1527030A
Cited
US1779817A
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US2016814A
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US2318208A
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US2598071A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-09 | 1960-04-09 | 1960-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-09 | 1964-04-09 | 1964-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-09 | 1968-04-09 | 1968-10-09 | $7700.00 | Window Closed / Lapsed |