US2934978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positioning system for machine tools
Assignee: Barnes Drill Co
•
Filing: 1958-05-07
•
Granted: 1960-05-03
•
Expires: 1978-05-07
Abstract
No abstract record available.
Inventors
- 👤 Mark R Estabrook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:38
CPC Classifications
B; B23; B23Q; B23Q15/00; B23Q15/20; B23Q15/22; B23Q15/26; G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/33; G05B19/35; G05B19/351; G05B2219/00; G05B2219/30; G05B2219/42; G05B2219/42213; G05B2219/49; G05B2219/49134; G05B2219/49201; G05B2219/50; G05B2219/50047; Y; Y10; Y10T; Y10T408/00; Y10T408/16; Y10T408/175; Y10T408/55; Y10T408/561; Y10T408/5614; Y10T409/00; Y10T409/30; Y10T409/30868; Y10T409/308792; Y10T74/00; Y10T74/13; Y10T74/131; Y10T74/14; Y10T74/1418; Y10T74/1424; Y10T74/1447; Y10T74/1453; Y10T74/1459; Y10T74/1465; Y10T74/1476
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |