Patent US2742823A successfully refreshed from Google Patents.
US2742823A
Expired / Lapsed
US
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Vertical lift three dimensional panto-graphic reproducing machine
Assignee: Individual
•
Filing: 1952-09-16
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Granted: 1956-04-24
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Expires: 1972-09-16
Abstract
No abstract record available.
Inventors
- 👤 Clarence R Compton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:46
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/20; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/301176; Y10T409/301232; Y10T409/3014
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US761349A
Cited
US885428A
Cited
US1351211A
Cited
FR616908A
Cited
GB487634A
Cited
US2240825A
Cited
US2626540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |