Patent US2879004A successfully refreshed from Google Patents.
US2879004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal impact milling process of impact milling
Assignee: SAFETY IND Inc
•
Filing: 1954-12-07
•
Granted: 1959-03-24
•
Expires: 1974-12-07
Abstract
No abstract record available.
Inventors
- 👤 Robert B Dodds
- 👤 Kurt H Conley
- 👤 Robert B Seidel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:36
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/14; B02C13/18; B02C13/1807; B02C11/00; B02C11/08; B02C13/1835; B02C9/00; B02C9/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US249725A
Cited
US254012A
Cited
US307386A
Cited
US310709A
Cited
US344246A
Cited
US1784762A
Cited
US1950501A
Cited
US2392365A
Cited
US2464212A
Cited
US2529679A
Cited
US2582509A
Cited
US2656988A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |