US2823299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instrument panel illuminator
Assignee: EMI Group Ltd
•
Filing: 1956-01-16
•
Granted: 1958-02-11
•
Expires: 1976-01-16
Abstract
No abstract record available.
Inventors
- 👤 Squire Major
- 👤 Turner Charles Winton
- 👤 Stevens Bertram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:26
CPC Classifications
B; B61; B61L; B61L25/00; B61L25/06; B61L25/08; F; F21; F21W; F21W2111/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2361765A
Cited
US2396998A
Cited
US2705308A
Cited
US2677045A
Cited
US2681980A
Cited
US2718636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |