US3261661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of material in a bed of inert particles
Assignee: Celleco AB
•
Filing: 1962-03-13
•
Granted: 1966-07-19
•
Expires: 1982-03-13
Abstract
No abstract record available.
Inventors
- 👤 B S Javorsky
- 👤 A L Andersson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:03
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/32
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |