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Patent US2478545A successfully refreshed from Google Patents.
US2478545A
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Ophthalmic camera with adjustable light support
Assignee: HONORARY ADVISORY COUNCIL FOR SCIENTIFIC AND INDUSTRIAL RESEARCH
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Filing: 1945-11-08
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Granted: 1949-08-09
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Expires: 1965-11-08
Abstract
No abstract record available.
Inventors
- 👤 Pearce Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:24
CPC Classifications
A; A61; A61B; A61B3/00; A61B3/10; A61B3/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1741526A
Cited
US2006007A
Cited
FR756464A
Cited
GB522148A
Cited
US2257331A
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US2277697A
Cited
US2314033A
Cited
US2349457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-08 | 1953-02-07 | 1953-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-08 | 1957-02-07 | 1957-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-08 | 1961-02-07 | 1961-08-09 | $7700.00 | Window Closed / Lapsed |