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US2479485A
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US
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Assignee: Individual
•
Filing: 1946-04-24
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Granted: 1949-08-16
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Expires: 1966-04-24
Abstract
No abstract record available.
Inventors
- 👤 Frank Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:43
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/22; E03C1/23; E03C1/2306; Y; Y10; Y10T; Y10T83/00; Y10T83/242
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-15 | 1953-02-14 | 1953-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-15 | 1957-02-14 | 1957-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-15 | 1961-02-14 | 1961-08-16 | $7700.00 | Window Closed / Lapsed |