Patent AT383895B successfully refreshed from Google Patents.
Patent US2980347A successfully refreshed from Google Patents.
US2980347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for hard disintegrating and sifting
Assignee: Gebr Hischmann Maschinenfabrik Firma
•
Filing: 1958-04-17
•
Granted: 1961-04-18
•
Expires: 1978-04-17
Abstract
No abstract record available.
Inventors
- 👤 Claes Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:12
CPC Classifications
B; B02; B02C; B02C17/00; B02C17/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1635527A
Cited
US1748920A
Cited
US1902413A
Cited
US1943817A
Cited
US2148447A
Cited
US2047136A
Cited
US2289727A
Cited
US2471043A
Cited
US2554450A
Cited
US2627375A
Cited
US2668667A
Cited
US2766939A
Cited
US2879004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |