Patent US2957392A successfully refreshed from Google Patents.
US2957392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine tools
Assignee: Individual
•
Filing: 1956-08-30
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Granted: 1960-10-25
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Expires: 1976-08-30
Abstract
No abstract record available.
Inventors
- 👤 Zwick Kurt
- 👤 Wolfbauer Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:33
CPC Classifications
B; B24; B24B; B24B49/00; B24B49/14; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/34; B23Q1/36; B23Q11/00; B23Q11/0003; Y; Y10; Y10S; Y10S62/00; Y10S62/10; Y10S82/00; Y10S82/90; Y10T; Y10T408/00; Y10T408/91; Y10T409/00; Y10T409/30; Y10T409/309576; Y10T409/309744
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) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |