US1404545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for determining the position of machine tools
Assignee: Individual
•
Filing: 1920-04-20
•
Granted: 1922-01-24
•
Expires: 1940-04-20
Abstract
No abstract record available.
Inventors
- 👤 Francis A Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:06
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/12; B23Q35/121; B23Q35/122; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49764; Y10T29/49771; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/301176; Y10T409/301624; Y10T409/30168; Y10T409/302632; Y10T82/00; Y10T82/14; Y10T82/141; Y10T82/25; Y10T82/2572
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) | 1925-01-23 | 1925-07-25 | 1926-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-01-23 | 1929-07-25 | 1930-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-01-23 | 1933-07-25 | 1934-01-24 | $7700.00 | Window Closed / Lapsed |