Patent US2683224A successfully refreshed from Google Patents.
US2683224A
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US
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Assignee: Individual
•
Filing: 1951-08-14
•
Granted: 1954-07-06
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Expires: 1971-08-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Howard W Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:55
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/10; G01F1/115
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1305803A
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US1934903A
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US2082539A
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US2221943A
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FR841639A
Cited
US2270141A
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US2377605A
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US2298652A
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US2299406A
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US2436683A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-05 | 1958-01-04 | 1958-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-05 | 1962-01-04 | 1962-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-05 | 1966-01-04 | 1966-07-06 | $7700.00 | Window Closed / Lapsed |