US3532326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for separately supplying coarse grain and fine grain material to a container such that the material is uniformly distributed in the container
Assignee: Bergwerksverband GmbH
•
Filing: 1968-07-22
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Granted: 1970-10-06
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Expires: 1988-07-22
Abstract
No abstract record available.
Inventors
- 👤 Hans-Dieter Schilling
- 👤 Gerhard Schmeling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:12
CPC Classifications
B; B65; B65G; B65G69/00; B65G69/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2138172A
Cited
US3091369A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |