Patent US2481857A successfully refreshed from Google Patents.
US2481857A
Expired / Lapsed
US
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Collapsible tube with a noncontaminating insert for the neck thereof
Assignee: Betts and Co Ltd
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Filing: 1945-07-12
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Granted: 1949-09-13
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Expires: 1965-07-12
Abstract
No abstract record available.
Inventors
- 👤 Menheneott Frank Marshall
- 👤 Hagger Wilfrid John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:40
CPC Classifications
B; B65; B65D; B65D35/00; B65D35/14; B65D35/16
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) | 1952-09-12 | 1953-03-14 | 1953-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-12 | 1957-03-14 | 1957-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-12 | 1961-03-14 | 1961-09-13 | $7700.00 | Window Closed / Lapsed |