US2218935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of routing articles through a furnace
Assignee: Borg Warner Corp
•
Filing: 1936-12-30
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Granted: 1940-10-22
•
Expires: 1956-12-30
Abstract
No abstract record available.
Inventors
- 👤 Roy C Ingersoll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:31
CPC Classifications
F; F27; F27B; F27B9/00; F27B9/02; F27B9/028; C; C23; C23D; C23D5/00; Y; Y10; Y10S; Y10S292/00; Y10S292/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-10-22 | 1944-04-22 | 1944-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-10-22 | 1948-04-22 | 1948-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-10-22 | 1952-04-22 | 1952-10-22 | $7700.00 | Window Closed / Lapsed |