US2714995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-sharpening laminated hammer mill knife
Assignee: Individual
•
Filing: 1952-05-26
•
Granted: 1955-08-09
•
Expires: 1972-05-26
Abstract
No abstract record available.
Inventors
- 👤 Sanning C Jensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:15
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/26; B02C13/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE502981C
Cited
DE650607C
Cited
US1769222A
Cited
US1835701A
Cited
US1927818A
Cited
DE685821C
Cited
US2237510A
Cited
US2319629A
Cited
CH271569A
Cited
US2602597A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-08 | 1959-02-07 | 1959-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-08 | 1963-02-07 | 1963-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-08 | 1967-02-07 | 1967-08-09 | $7700.00 | Window Closed / Lapsed |