US2750443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mirror drum facsimile scanner
Assignee: Alden Products Co Inc
•
Filing: 1951-06-18
•
Granted: 1956-06-12
•
Expires: 1971-06-18
Abstract
No abstract record available.
Inventors
- 👤 Nyman Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:09
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/02; H04N1/00; H04N1/04; H04N1/113; H04N1/1135
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2099872A
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US2254614A
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US2262584A
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US2491758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |