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US2561777A
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Assignee: ETHEL BERNSTEIN
•
Filing: 1949-03-10
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Granted: 1951-07-24
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Expires: 1969-03-10
Abstract
No abstract record available.
Inventors
- 👤 Bernstein Lillian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:46
CPC Classifications
A; A41; A41F; A41F11/00; A41F11/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1046798A
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US1079624A
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US1528882A
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US1592964A
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US1631694A
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US1635456A
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US1642030A
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AU2267235A
Cited
US2453834A
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US2425479A
Cited
US2467380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |