US3220612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container for bulk transportation and storage
Assignee: Continental Carbon Co
•
Filing: 1963-12-17
•
Granted: 1965-11-30
•
Expires: 1983-12-17
Abstract
No abstract record available.
Inventors
- 👤 Thomson Ely Knox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:25
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/54; B65D88/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1524685A
Cited
US2035838A
Cited
US2293160A
Cited
US2862645A
Cited
US3133677A
Cited
GB964283A
Cited
US3124265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |