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US2575482A
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Assignee: Individual
•
Filing: 1945-12-12
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Granted: 1951-11-20
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Expires: 1965-12-12
Abstract
No abstract record available.
Inventors
- 👤 Samuel I Berger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:45
CPC Classifications
B; B42; B42F; B42F17/00; B42F17/34; B42F17/346
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US820069A
Cited
US1102869A
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US1964252A
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US2115537A
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FR828895A
Cited
US2141761A
Cited
US2229847A
Cited
US2341983A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |