US2986969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stereoscopic simulation device
Assignee: Individual
•
Filing: 1954-12-07
•
Granted: 1961-06-06
•
Expires: 1974-12-07
Abstract
No abstract record available.
Inventors
- 👤 Hrand M Muncheryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:42
CPC Classifications
G; G02; G02B; G02B7/00; G02B7/002; G02B25/00; G02B25/002; G02B25/004; G02C; G02C7/00; G02C7/02; G02C7/08; G02C7/088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US988081A
Cited
DE395479C
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US1636450A
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US1879793A
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US1851579A
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US2304504A
Cited
US2380481A
Cited
US2298058A
Cited
US2408772A
Cited
FR996753A
Cited
US2625855A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |