Patent US2831453A successfully refreshed from Google Patents.
US2831453A
Expired / Lapsed
US
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Illuminated panel, dial and/or pointer by geometrical surfaces
Assignee: Individual
•
Filing: 1956-07-26
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Granted: 1958-04-22
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Expires: 1976-07-26
Abstract
No abstract record available.
Inventors
- 👤 George K C Hardesty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:36
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/0001; G02B6/0011; G02B6/0013; G02B6/0015; G02B6/002; G02B6/0021; G01; G01D; G01D11/00; G01D11/28; G02B6/0033; G02B6/0035; G02B6/0038; G02B6/005; G02B6/0055; G05; G05G; G05G1/00; G05G1/08; G05G1/10; G05G1/105; G09; G09F; G09F13/00; G09F13/18; G09F9/00; G12; G12B; G12B11/00; Y; Y10; Y10S; Y10S116/00; Y10S116/06; Y10S116/36
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) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |