US2958762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent light construction
Assignee: CONTRONICS Inc
•
Filing: 1957-06-13
•
Granted: 1960-11-01
•
Expires: 1977-06-13
Abstract
No abstract record available.
Inventors
- 👤 Raymond H Cheney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:25
CPC Classifications
A; A47; A47G; A47G33/00; A47G33/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US728063A
Cited
US2017443A
Cited
US2125780A
Cited
US2213868A
Cited
US2795730A
Cited
US2721808A
Cited
US2809316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |