Patent US2312042A successfully refreshed from Google Patents.
US2312042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric circuit for photoelectric engraving machines
Assignee: Individual
•
Filing: 1940-08-03
•
Granted: 1943-02-23
•
Expires: 1960-08-03
Abstract
No abstract record available.
Inventors
- 👤 George E Losier
- 👤 Leo V Skinner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:58
CPC Classifications
B; B41; B41C; B41C1/00; B41C1/02; B41C1/04; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/12; B23Q35/127; B23Q35/128; G; G05; G05D; G05D13/00; G05D13/62; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/303416; Y10T409/303472; Y10T409/303528; Y10T409/303584
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-02-22 | 1946-08-24 | 1947-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-02-22 | 1950-08-24 | 1951-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-02-22 | 1954-08-24 | 1955-02-23 | $7700.00 | Window Closed / Lapsed |