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US3006249A
Expired / Lapsed
US
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Photographic objective
Assignee: Ernst Leitz Canada Ltd
•
Filing: 1958-09-30
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Granted: 1961-10-31
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Expires: 1978-09-30
Abstract
No abstract record available.
Inventors
- 👤 Mandler Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:24
CPC Classifications
G; G02; G02B; G02B13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2130760A
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US2601594A
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US2601592A
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US2676517A
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US2774280A
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US2671380A
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US2701982A
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US2828671A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-30 | 1965-05-01 | 1965-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-30 | 1969-05-01 | 1969-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-30 | 1973-05-01 | 1973-10-31 | $7700.00 | Window Closed / Lapsed |