US3524544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Milling plant for sifting damp material
Assignee: Westfalia Dinnendahl Groeppel AG
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Filing: 1968-08-20
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Granted: 1970-08-18
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Expires: 1988-08-20
Abstract
No abstract record available.
Inventors
- 👤 Heinz Jager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:31
CPC Classifications
B; B07; B07B; B07B4/00; B07B4/02; B07B4/04; B02; B02C; B02C23/00; B02C23/18; B02C23/20; B02C23/22; B07B4/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-17 | 1974-02-16 | 1974-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-17 | 1978-02-16 | 1978-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-17 | 1982-02-16 | 1982-08-18 | $7700.00 | Window Closed / Lapsed |