US2464586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stereoscopy
Assignee: Individual
•
Filing: 1942-08-28
•
Granted: 1949-03-15
•
Expires: 1962-08-28
Abstract
No abstract record available.
Inventors
- 👤 Klein Edward
- 👤 Klein Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:48
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/58; A61B6/582; A61B6/583
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1370640A
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US1904868A
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US2057325A
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US2029300A
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US2088041A
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US2196904A
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US2141857A
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US2203687A
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US2331225A
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US2346774A
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US2315373A
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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) | 1952-03-14 | 1952-09-13 | 1953-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-14 | 1956-09-13 | 1957-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-14 | 1960-09-13 | 1961-03-15 | $7700.00 | Window Closed / Lapsed |