US2406009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for cutting curved, selfconjugate indentations
Assignee: BUHLER BROTHERS
•
Filing: 1940-08-23
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Granted: 1946-08-20
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Expires: 1960-08-23
Abstract
No abstract record available.
Inventors
- 👤 Forster Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:50
CPC Classifications
B; B23; B23F; B23F9/00; B23F9/08; B23F9/10; B23F9/105; B23F23/00; B23F23/08; B23F23/085; B23F9/086; Y; Y10; Y10T; Y10T409/00; Y10T409/10; Y10T409/101431; Y10T409/103816; Y10T409/104134; Y10T409/105883; Y10T409/106042
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) | 1949-08-19 | 1950-02-18 | 1950-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-08-19 | 1954-02-18 | 1954-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-08-19 | 1958-02-18 | 1958-08-20 | $7700.00 | Window Closed / Lapsed |