US2497870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container closure
Assignee: Crown Cork and Seal Co Inc
•
Filing: 1947-01-22
•
Granted: 1950-02-21
•
Expires: 1967-01-22
Abstract
No abstract record available.
Inventors
- 👤 Stanley W Dennis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:49
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/02; B65D41/10; B65D41/12; B21; B21D; B21D51/00; B21D51/16; B21D51/38; B21D51/44; B21D51/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US619603A
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US888995A
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US934072A
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US922779A
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US1131676A
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US1257992A
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US1745929A
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US1744444A
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US1956217A
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US2048062A
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US1956215A
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US2186519A
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US2345876A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |