US2484591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stereoscope
Assignee: DAVID WHITE Co
•
Filing: 1945-05-08
•
Granted: 1949-10-11
•
Expires: 1965-05-08
Abstract
No abstract record available.
Inventors
- 👤 Seton I Rochwite
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:27
CPC Classifications
G; G02; G02B; G02B30/00; G02B30/20; G02B30/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US188769A
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US749046A
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US1221091A
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US1756062A
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US1679661A
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US1808176A
Cited
US1850153A
Cited
US2132670A
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US2336288A
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US2279904A
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US2349013A
Cited
US2377109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |