US2887894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed control system including a variable speed transmission adjustable as to output speed in accordance with the position of a selectively movable abutment
Assignee: Brown & Sharpe Turret Drilling
•
Filing: 1954-03-18
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Granted: 1959-05-26
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Expires: 1974-03-18
Abstract
No abstract record available.
Inventors
- 👤 Charlat Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:45
CPC Classifications
F; F16; F16D; F16D19/00; B; B23; B23B; B23B39/00; B23B39/16; B23B39/20; B23B39/205; B23Q; B23Q15/00; B23Q16/00; B23Q16/006; B23Q39/00; B23Q39/02; B23Q5/00; B23Q5/02; B23Q5/04; B23Q5/041; B23Q5/12; B23Q5/16; B23Q2220/00; B23Q2220/002; B23Q3/00; B23Q3/155; B23Q3/1552; B23Q3/15526; B23Q3/15534; Y; Y10; Y10S; Y10S408/00; Y10S408/71; Y10T; Y10T29/00; Y10T29/51; Y10T29/5179; Y10T408/00; Y10T408/16; Y10T408/165; Y10T408/36; Y10T408/37; Y10T408/60; Y10T408/65; Y10T408/67; Y10T408/675; Y10T408/6757; Y10T408/70; Y10T408/91; Y10T74/00; Y10T74/14
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |