US2259472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duplicator for machine tools
Assignee: Elsag Bailey Inc
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Filing: 1939-10-06
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Granted: 1941-10-21
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Expires: 1959-10-06
Abstract
No abstract record available.
Inventors
- 👤 Johnson Clarence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:04
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/24; B23Q35/26; B23Q35/36; B23Q35/08; B23Q35/18; B23Q35/181; B23Q35/183; Y; Y10; Y10S; Y10S33/00; Y10S33/02; Y10T; Y10T29/00; Y10T29/49; Y10T29/49995; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/301176; Y10T409/302688; Y10T409/302744; Y10T409/3028
Claims Analysis
Total Claims: 0
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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) | 1944-10-20 | 1945-04-21 | 1945-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-10-20 | 1949-04-21 | 1949-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-10-20 | 1953-04-21 | 1953-10-21 | $7700.00 | Window Closed / Lapsed |