US2714841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic recorder
Assignee: International Business Machines Corp
•
Filing: 1950-12-30
•
Granted: 1955-08-09
•
Expires: 1970-12-30
Abstract
No abstract record available.
Inventors
- 👤 Frederick M Demer
- 👤 Ralph G Mork
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:05
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/24; G06; G06K; G06K7/00; G06K7/10; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE23285E
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US2244497A
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US2377754A
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US2405664A
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US2346251A
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US2355268A
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US2391611A
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US2486406A
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US2475497A
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US2542311A
Cited
US2600168A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-08 | 1959-02-07 | 1959-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-08 | 1963-02-07 | 1963-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-08 | 1967-02-07 | 1967-08-09 | $7700.00 | Window Closed / Lapsed |