US1826889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutter head
Assignee: Individual
•
Filing: 1928-03-07
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Granted: 1931-10-13
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Expires: 1948-03-07
Abstract
No abstract record available.
Inventors
- 👤 Henry C Koch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:27
CPC Classifications
D; D06; D06H; D06H7/00; D06H7/24; E; E04; E04D; E04D15/00; E04D15/02; Y; Y10; Y10T; Y10T83/00; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/4801; Y10T83/485; Y10T83/494; Y10T83/498; Y10T83/647; Y10T83/6584; Y10T83/6592; Y10T83/869; Y10T83/8789; Y10T83/929; Y10T83/9372; Y10T83/9406
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) | 1934-10-12 | 1935-04-13 | 1935-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-10-12 | 1939-04-13 | 1939-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-10-12 | 1943-04-13 | 1943-10-13 | $7700.00 | Window Closed / Lapsed |