Patent US3047176A successfully refreshed from Google Patents.
US3047176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure
Assignee: Crown Cork and Seal Co Inc
•
Filing: 1956-03-29
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Granted: 1962-07-31
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Expires: 1976-03-29
Abstract
No abstract record available.
Inventors
- 👤 Eibe A Wilckens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:37
CPC Classifications
B; B65; B65D; B65D41/00; B65D41/02; B65D41/10; B65D41/12; B65D53/00; B65D53/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2427699A
Cited
US2543775A
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US2681742A
Cited
US2654913A
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US2684774A
Cited
US2739724A
Cited
BE523527A
Cited
US2754276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |