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US2601733A
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US
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Assignee: Individual
•
Filing: 1948-02-27
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Granted: 1952-07-01
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Expires: 1968-02-27
Abstract
No abstract record available.
Inventors
- 👤 Clarence M Durey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:09
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/08; G09F3/18; G09F3/20; G09F3/202
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2338377A
Cited
US1165239A
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CH94578A
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FR530154A
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US1530039A
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US1523976A
Cited
US1671574A
Cited
US1627751A
Cited
US1692633A
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US1841026A
Cited
US1852474A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-01 | 1955-12-31 | 1956-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-01 | 1959-12-31 | 1960-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-01 | 1963-12-31 | 1964-07-01 | $7700.00 | Window Closed / Lapsed |