US2831620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-sealing closure mechanism for liquids
Assignee: Individual
•
Filing: 1954-07-19
•
Granted: 1958-04-22
•
Expires: 1974-07-19
Abstract
No abstract record available.
Inventors
- 👤 Theodore F Schlicksupp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:58
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/04; B65D47/20; B65D47/2018; B65D47/2056; B65D47/2081
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1418592A
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US1958434A
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US2107106A
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US2223854A
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US2614732A
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US2615597A
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US2641376A
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US2591465A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |