US3367584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hammer for hammer mills
Assignee: Owatonna Manufacturing Co Inc
•
Filing: 1965-06-09
•
Granted: 1968-02-06
•
Expires: 1985-06-09
Abstract
No abstract record available.
Inventors
- 👤 Richard W Steinberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:33
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/26; B02C13/28
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB190328388A
Cited
US1954175A
Cited
DE703371C
Cited
US2477628A
Cited
US2424316A
Cited
US2607538A
Cited
US3131875A
Cited
US3254687A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-05 | 1971-08-07 | 1972-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-05 | 1975-08-07 | 1976-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-05 | 1979-08-07 | 1980-02-06 | $7700.00 | Window Closed / Lapsed |