US2750068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container closure
Assignee: SHEFFIELD TUBE Corp
•
Filing: 1955-03-29
•
Granted: 1956-06-12
•
Expires: 1975-03-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Lester B Platt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:38
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/04; B65D47/06; B65D47/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US329920A
Cited
US906157A
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US996330A
Cited
US1081555A
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US1080747A
Cited
US1891826A
Cited
US2295865A
Cited
US2571542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |