Patent US2197308A successfully refreshed from Google Patents.
US2197308A
Expired / Lapsed
US
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Machine tool
Assignee: Individual
•
Filing: 1938-04-22
•
Granted: 1940-04-16
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Expires: 1958-04-22
Abstract
No abstract record available.
Inventors
- 👤 Kolb Alfred
- 👤 Wilk Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:23
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/54; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/48; B23Q1/4852; B23Q1/4866; B23Q17/00; B23Q17/24; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/301176; Y10T409/301624; Y10T409/30168; Y10T409/301792; Y10T82/00; Y10T82/25; Y10T82/2572
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-04-16 | 1943-10-16 | 1944-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-04-16 | 1947-10-16 | 1948-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-04-16 | 1951-10-16 | 1952-04-16 | $7700.00 | Window Closed / Lapsed |