US2700322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stereoscopic picture projection apparatus
Assignee: SAWYER S Inc
•
Filing: 1950-03-02
•
Granted: 1955-01-25
•
Expires: 1970-03-02
Abstract
No abstract record available.
Inventors
- 👤 Gruber Wilhelm Biller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:46
CPC Classifications
G; G03; G03B; G03B35/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US288025A
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US1308207A
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US1686463A
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GB190809507A
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US1204425A
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US1259365A
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US1271929A
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US1596835A
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US1503766A
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FR590815A
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US1806190A
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US1755220A
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US1971234A
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US2189285A
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US2336938A
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US2307981A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-24 | 1958-07-26 | 1959-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-24 | 1962-07-26 | 1963-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-24 | 1966-07-26 | 1967-01-25 | $7700.00 | Window Closed / Lapsed |