US2657044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for handling corrugated paperboard
Assignee: SEABOARD CONTAINER Corp
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Filing: 1950-08-31
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Granted: 1953-10-27
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Expires: 1970-08-31
Abstract
No abstract record available.
Inventors
- 👤 Charles W Apgar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:40
CPC Classifications
B; B65; B65H; B65H45/00; B65H45/12; B65H45/20; B65H2701/00; B65H2701/10; B65H2701/11; B65H2701/112; B65H2701/1123; B65H2701/11231
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |