US2927403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic operating and control system for a machine tool
Assignee: Brown and Sharpe Manufacturing Co
•
Filing: 1957-09-20
•
Granted: 1960-03-08
•
Expires: 1977-09-20
Abstract
No abstract record available.
Inventors
- 👤 John J Holland
- 👤 Maurice J Knott
- 👤 Harold A Bryant
- 👤 Donald J Dunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:49
CPC Classifications
B; B24; B24B; B24B47/00; B24B47/02; B24B47/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US827993A
Cited
US2163246A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |