US3467323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding apparatus
Assignee: Valmet AB
•
Filing: 1965-09-22
•
Granted: 1969-09-16
•
Expires: 1985-09-22
Abstract
No abstract record available.
Inventors
- 👤 Arne Johan Arthur Asplund
- 👤 Johan Gunnar Inge Johansson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:10
CPC Classifications
D; D21; D21D; D21D1/00; D21D1/20; D21D1/30; B; B02; B02C; B02C7/00; B02C7/02; B02C7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US976535A
Cited
US1123494A
Cited
US2751157A
Cited
US3092338A
Cited
US3215355A
Cited
US3302893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |