US2988290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crushers and grinding disks therefor
Assignee: Condux Werk Herbert A Merges KG
•
Filing: 1959-03-20
•
Granted: 1961-06-13
•
Expires: 1979-03-20
Abstract
No abstract record available.
Inventors
- 👤 Herbert A Merges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:24
CPC Classifications
B; B02; B02C; B02C7/00; B02C7/02; B02C7/04; Y; Y10; Y10T; Y10T279/00; Y10T279/34; Y10T279/3406; Y10T279/3418
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB468433A
Cited
US212838A
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US877640A
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US1653472A
Cited
US1676663A
Cited
DE574508C
Cited
US2226429A
Cited
US2716926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |