US2522239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Visual alignment signal generator
Assignee: General Electric Co
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Filing: 1946-08-08
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Granted: 1950-09-12
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Expires: 1966-08-08
Abstract
No abstract record available.
Inventors
- 👤 Billy R Shepard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:25
CPC Classifications
H; H03; H03B; H03B23/00; G; G01; G01R; G01R13/00; G01R13/20; G01R13/22; G01R13/32
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) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |