US3062099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stereoscopic attachment for viewers
Assignee: American Optical Corp
•
Filing: 1959-02-12
•
Granted: 1962-11-06
•
Expires: 1979-02-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Hobert W French
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:56
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/18; G02B21/20; G02B21/22; G02B30/00; G02B30/20; G02B30/34; G02B30/35
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR598030A
Cited
US2352570A
Cited
US2803992A
Cited
US1501059A
Cited
AU560032A
Cited
DE717129C
Cited
US2413996A
Cited
US2555106A
Cited
US2901942A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |