US3247755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite image display device formed of fiber ribbons
Assignee: American Optical Corp
•
Filing: 1960-09-19
•
Granted: 1966-04-26
•
Expires: 1980-09-19
Abstract
No abstract record available.
Inventors
- 👤 Walter P Siegmund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:13
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/04; G02B6/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2471800A
Cited
US2652660A
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US2726185A
Cited
US2825260A
Cited
US2967248A
Cited
US3043910A
Cited
US3043179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |