US3497981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sign formed of light conducting and emitting members
Assignee: Individual
•
Filing: 1967-12-13
•
Granted: 1970-03-03
•
Expires: 1987-12-13
Abstract
No abstract record available.
Inventors
- 👤 George Henry Tyne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:29
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/0001; G02B6/0005; G02B6/001; G02B6/0006; G09; G09F; G09F13/00; G09F13/24; G02B6/0011; G02B6/0013; G02B6/0015; G02B6/002; G02B6/0033; G02B6/0058; G02B6/0061; G09F13/18; G09F2013/1872; G09F2013/1877; G09F2013/1886; G09F2013/189; G09F2013/1895; Y; Y10; Y10S; Y10S362/00; Y10S362/812; Y10S385/00; Y10S385/901
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) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |