Patent US2493956A successfully refreshed from Google Patents.
US2493956A
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US
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Assignee: COL SNAC CORP
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Filing: 1947-10-24
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Granted: 1950-01-10
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Expires: 1967-10-24
Abstract
No abstract record available.
Inventors
- 👤 Clement G Ewertz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:54
CPC Classifications
G; G07; G07F; G07F11/00; G07F11/46; G07F11/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189503169A
Cited
FR474411A
Cited
US1697306A
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US1963674A
Cited
US1946078A
Cited
US1974800A
Cited
CH179342A
Cited
GB489277A
Cited
US2222862A
Cited
US2285435A
Cited
US2285068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |