US2920781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knocked down containers
Assignee: Individual
•
Filing: 1956-08-20
•
Granted: 1960-01-12
•
Expires: 1976-08-20
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Butcher
- 👤 Leo F Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:58
CPC Classifications
B; B65; B65D; B65D9/00; B65D9/12; B65D88/00; B65D88/52; B65D88/526; B65D88/528; B65D9/22; B65D9/24; B65D9/32; B65D9/34; B65D9/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US414622A
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US664084A
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US1147257A
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US1222416A
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US1970836A
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US2077122A
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US2360232A
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US2406448A
Cited
US2418861A
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US2547112A
Cited
US2702513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |