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Patent US2538946A successfully refreshed from Google Patents.
US2538946A
Expired / Lapsed
US
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Metal closure for powder cans
Assignee: F N BURT CO Inc
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Filing: 1945-07-06
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Granted: 1951-01-23
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Expires: 1965-07-06
Abstract
No abstract record available.
Inventors
- 👤 Nyden Robert
- 👤 Harry K Dickerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:36
CPC Classifications
B; B65; B65D; B65D47/00; B65D47/04; B65D47/20; B65D47/26; B65D47/261; B65D47/265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1364862A
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GB185717A
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US1705814A
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US1653471A
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GB304159A
Cited
US1765383A
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US2110093A
Cited
US2143578A
Cited
US2251808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-22 | 1954-07-24 | 1955-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-22 | 1958-07-24 | 1959-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-22 | 1962-07-24 | 1963-01-23 | $7700.00 | Window Closed / Lapsed |