US2838975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for making stereoscopic pictures
Assignee: Twentieth Century Fox Film Corp
•
Filing: 1954-03-19
•
Granted: 1958-06-17
•
Expires: 1974-03-19
Abstract
No abstract record available.
Inventors
- 👤 Laube Grover
- 👤 Halprin Sol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:28
CPC Classifications
G; G03; G03B; G03B35/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2153892A
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FR850405A
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US2337363A
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US2365212A
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US2630737A
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GB693174A
Cited
US2753774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |