US2643794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-sealing collapsible tube
Assignee: Individual
•
Filing: 1948-06-17
•
Granted: 1953-06-30
•
Expires: 1968-06-17
Abstract
No abstract record available.
Inventors
- 👤 Perkins Roscoe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:18
CPC Classifications
B; B65; B65D; B65D35/00; B65D35/14; B65D35/20; B65D47/00; B65D47/04; B65D47/20; B65D47/2018; B65D47/2056; B65D47/2062; B65D47/2068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1092691A
Cited
US2026012A
Cited
US2009552A
Cited
US2124481A
Cited
US2185323A
Cited
CH206334A
Cited
US2270794A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-29 | 1956-12-29 | 1957-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-29 | 1960-12-29 | 1961-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-29 | 1964-12-29 | 1965-06-30 | $7700.00 | Window Closed / Lapsed |