US2665472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutter head
Assignee: Rheinmetall Air Defence AG
•
Filing: 1951-07-03
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Granted: 1954-01-12
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Expires: 1971-07-03
Abstract
No abstract record available.
Inventors
- 👤 Aschwanden Paul
- 👤 Burri Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:58
CPC Classifications
B; B23; B23F; B23F21/00; B23F21/12; B23F21/22; B23F21/223; B23F21/226; Y; Y10; Y10T; Y10T407/00; Y10T407/17; Y10T407/1705; Y10T407/171; Y10T407/19; Y10T407/1902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL11718C
Cited
GB109608A
Cited
US1338822A
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US1820415A
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US2268326A
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US2260605A
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US2346806A
Cited
US2408787A
Cited
CH264373A
Cited
CH263721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |