US3531005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of transporting a steelmaking furnace
Assignee: Alliance Machine Co
•
Filing: 1969-02-05
•
Granted: 1970-09-29
•
Expires: 1989-02-05
Abstract
No abstract record available.
Inventors
- 👤 Ross B Mccready
- 👤 Klaus W Forster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:45
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/42; C21C5/46; C21C5/4673; B; B61; B61K; B61K5/00; B61K5/02; C21C5/4686
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2889597A
Cited
US3362700A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |