US2464293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectric scanning device for copying machines
Assignee: Taylor Taylor and Hobson Ltd
•
Filing: 1947-03-18
•
Granted: 1949-03-15
•
Expires: 1967-03-18
Abstract
No abstract record available.
Inventors
- 👤 Cooke Ernest Albert
- 👤 Greenhalgh Alan Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:21
CPC Classifications
B; B24; B24B; B24B17/00; B24B17/02; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/303416; Y10T409/303472; Y10T409/303528; Y10T409/303584
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2125074A
Cited
US2225915A
Cited
US2116593A
Cited
US2121211A
Cited
GB500104A
Cited
US2331337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-14 | 1952-09-13 | 1953-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-14 | 1956-09-13 | 1957-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-14 | 1960-09-13 | 1961-03-15 | $7700.00 | Window Closed / Lapsed |