US2616333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foldable stereoscopic device
Assignee: Individual
•
Filing: 1950-02-11
•
Granted: 1952-11-04
•
Expires: 1970-02-11
Abstract
No abstract record available.
Inventors
- 👤 Theodore B Tinker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:01
CPC Classifications
G; G02; G02B; G02B30/00; G02B30/20; G02B30/34; G02B30/37
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US61359A
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US174893A
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FR344421A
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US984055A
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US962643A
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GB173849A
Cited
GB266869A
Cited
US1850153A
Cited
US2005027A
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US2190646A
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US2133222A
Cited
US2377109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |