US2449799A
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Assignee: ALVAREZ PATENT Corp
•
Filing: 1946-09-18
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Granted: 1948-09-21
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Expires: 1966-09-18
Abstract
No abstract record available.
Inventors
- 👤 Alvarez Octavio Jose
- 👤 Osman Ertogroul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:12
CPC Classifications
G; G04; G04C; G04C21/00; G04C21/16; G04C21/20; G04C21/22; H; H01; H01H; H01H29/00; H01H29/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR653280A
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US1851227A
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US2133908A
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US2337515A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-21 | 1952-03-22 | 1952-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-21 | 1956-03-22 | 1956-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-21 | 1960-03-22 | 1960-09-21 | $7700.00 | Window Closed / Lapsed |