US2479072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical apparatus
Assignee: Individual
•
Filing: 1942-11-30
•
Granted: 1949-08-16
•
Expires: 1962-11-30
Abstract
No abstract record available.
Inventors
- 👤 Lee Royal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:45
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/001; G01H; G01H3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2083759A
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US2005887A
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US2081738A
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US2043180A
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US2209213A
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US2235533A
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US2261541A
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US2288838A
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US2305626A
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US2392758A
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US2357745A
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US2364237A
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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) | 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 |