Patent US2747151A successfully refreshed from Google Patents.
US2747151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for machine tools
Assignee: Pratt and Whitney Co Inc
•
Filing: 1950-12-01
•
Granted: 1956-05-22
•
Expires: 1970-12-01
Abstract
No abstract record available.
Inventors
- 👤 Jacob J Jaeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:04
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/12; B23Q2735/00; B23Q2735/02; B23Q2735/06; B23Q2735/065; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/303416; Y10T409/303472; Y10T409/303528
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1683581A
Cited
GB459685A
Cited
GB524875A
Cited
US2331337A
Cited
US2389594A
Cited
US2345218A
Cited
US2390566A
Cited
US2334956A
Cited
US2332533A
Cited
US2433564A
Cited
US2484968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |