US2473138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine tool
Assignee: Warner and Swasey Co
•
Filing: 1944-10-21
•
Granted: 1949-06-14
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Expires: 1964-10-21
Abstract
No abstract record available.
Inventors
- 👤 Nicholas P Darash
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:17
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/10; B23B; B23B29/00; B23B29/24; B23B29/242; B23Q2220/00; B23Q2220/002; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5152; Y10T82/00; Y10T82/25; Y10T82/2572; Y10T82/2574; Y10T82/2585; Y10T82/2587
Claims Analysis
Total Claims: 0
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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) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |