US3196002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blast furnace process
Assignee: Individual
•
Filing: 1963-04-17
•
Granted: 1965-07-20
•
Expires: 1983-04-17
Abstract
No abstract record available.
Inventors
- 👤 Kenneth W Stookey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:49
CPC Classifications
C; C21; C21B; C21B7/00; C21B7/002; C21B5/00; C21B5/008; C21B2100/00; C21B2100/40; C21B2100/44
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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |