Patent US2473523A successfully refreshed from Google Patents.
US2473523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container closing apparatus
Assignee: Crown Cork and Seal Co Inc
•
Filing: 1947-01-24
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Granted: 1949-06-21
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Expires: 1967-01-24
Abstract
No abstract record available.
Inventors
- 👤 Henschen Edgar
- 👤 Stanley W Dennis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:43
CPC Classifications
B; B65; B65B; B65B7/00; B65B7/16; B65B7/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1224937A
Cited
US1244494A
Cited
US1737569A
Cited
US1958306A
Cited
US2068165A
Cited
US2384052A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-20 | 1952-12-20 | 1953-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-20 | 1956-12-20 | 1957-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-20 | 1960-12-20 | 1961-06-21 | $7700.00 | Window Closed / Lapsed |