Patent US2528296A successfully refreshed from Google Patents.
US2528296A
Expired / Lapsed
US
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Method of sealing sheet metal boxes
Assignee: Carreras Ltd
•
Filing: 1947-11-04
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Granted: 1950-10-31
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Expires: 1967-11-04
Abstract
No abstract record available.
Inventors
- 👤 Baron Theodore
- 👤 Weinberger Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:10
CPC Classifications
B; B65; B65B; B65B7/00; B65B7/16; B65B7/28; B65B7/2842; B65B7/2864; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/103; Y10T156/1033
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1358834A
Cited
US1700005A
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US1642984A
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US1861144A
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US2003494A
Cited
US2050248A
Cited
US2435267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |