US3469562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating powdered or granulated substances
Assignee: Individual
•
Filing: 1965-07-22
•
Granted: 1969-09-30
•
Expires: 1985-07-22
Abstract
No abstract record available.
Inventors
- 👤 Gustav Grun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:36
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; A; A23; A23C; A23C11/00; A23C11/02; A23C11/04; A23C11/045; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00162; B01J2219/00182
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) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |