US3236409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Push-in can-end closure with holding means
Assignee: United States Steel Corp
•
Filing: 1964-07-06
•
Granted: 1966-02-22
•
Expires: 1984-07-06
Abstract
No abstract record available.
Inventors
- 👤 Charles W Cross
- 👤 Kenneth V Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:52
CPC Classifications
B; B65; B65D; B65D17/00; B65D17/50; B65D17/506
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3159304A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |