Patent US2488239A successfully refreshed from Google Patents.
US2488239A
Expired / Lapsed
US
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Panoramic telescope
Assignee: Mergenthaler Linotype GmbH
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Filing: 1946-05-17
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Granted: 1949-11-15
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Expires: 1966-05-17
Abstract
No abstract record available.
Inventors
- 👤 Rattray George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:56
CPC Classifications
G; G02; G02B; G02B23/00; G02B23/02; G02B23/08; G02B27/00; G02B27/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1360735A
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US1460627A
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US1479036A
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GB282085A
Cited
US2184615A
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US2335286A
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US2366410A
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US2266741A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-14 | 1953-05-16 | 1953-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-14 | 1957-05-16 | 1957-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-14 | 1961-05-16 | 1961-11-15 | $7700.00 | Window Closed / Lapsed |