Patent US2552460A successfully refreshed from Google Patents.
US2552460A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1948-12-01
•
Granted: 1951-05-08
•
Expires: 1968-12-01
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Rodman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:16
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US446882A
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US662977A
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US1661096A
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US1976278A
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US1894886A
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CH161585A
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US2087102A
Cited
US2124659A
Cited
US2221872A
Cited
US2304132A
Cited
US2400014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |