US3447852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scanning apparatus
Assignee: S Smith and Sons Ltd
•
Filing: 1965-12-21
•
Granted: 1969-06-03
•
Expires: 1985-12-21
Abstract
No abstract record available.
Inventors
- 👤 Boris Victorien Barlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:51
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/02; H04N3/08; H04N3/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3125625A
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US2653185A
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US2718549A
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US2997539A
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US2960001A
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US2998748A
Cited
US3139604A
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US3147664A
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US3153723A
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US3175459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |