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Patent US1133828A successfully refreshed from Google Patents.
US1133828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallurgical furnace.
Assignee: Individual
•
Filing: 1912-09-11
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Granted: 1915-03-30
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Expires: 1932-09-11
Abstract
No abstract record available.
Inventors
- 👤 Utley Wedge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:21
CPC Classifications
F; F27; F27B; F27B9/00; F27B9/14; F27B9/20; F27B9/24
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) | 1918-03-29 | 1918-09-28 | 1919-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-03-29 | 1922-09-28 | 1923-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-03-29 | 1926-09-28 | 1927-03-30 | $7700.00 | Window Closed / Lapsed |