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Patent US2570933A successfully refreshed from Google Patents.
US2570933A
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Assignee: Individual
•
Filing: 1948-03-05
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Granted: 1951-10-09
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Expires: 1968-03-05
Abstract
No abstract record available.
Inventors
- 👤 Ernest E Fobes
- 👤 Ralph P Rutter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:49
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/48; B60D1/52; B60D1/54; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7075
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1461813A
Cited
US1761324A
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US1779192A
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US2056523A
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US2062788A
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US2320046A
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US2408531A
Cited
US2485743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-08 | 1955-04-09 | 1955-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-08 | 1959-04-09 | 1959-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-08 | 1963-04-09 | 1963-10-09 | $7700.00 | Window Closed / Lapsed |