Patent US2344803A successfully refreshed from Google Patents.
Patent US2991703A successfully refreshed from Google Patents.
US2991703A
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US
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Photographic apparatus
Assignee: Polaroid Corp
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Filing: 1958-08-29
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Granted: 1961-07-11
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Expires: 1978-08-29
Abstract
No abstract record available.
Inventors
- 👤 Vaito K Eloranta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:03
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; G03B17/50; G03B17/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1907252A
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US2140438A
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US2669168A
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US2605684A
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US2558858A
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US2652759A
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US2638828A
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US2810331A
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US2894440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |