US1515511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically-heated furnace or leer
Assignee: H L DIXON Co
•
Filing: 1922-02-01
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Granted: 1924-11-11
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Expires: 1942-02-01
Abstract
No abstract record available.
Inventors
- 👤 Edwin E Milner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:03
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/62; F; F27; F27D; F27D11/00; F27D11/02
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) | 1927-11-11 | 1928-05-12 | 1928-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-11-11 | 1932-05-12 | 1932-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-11-11 | 1936-05-12 | 1936-11-11 | $7700.00 | Window Closed / Lapsed |