Patent US886492A successfully refreshed from Google Patents.
US886492A
Expired / Lapsed
US
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Metal-heating furnace.
Assignee: Siemens Industry Inc
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Filing: 1905-03-06
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Granted: 1908-05-05
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Expires: 1925-03-06
Abstract
No abstract record available.
Inventors
- 👤 Jerome R George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:20
CPC Classifications
A; A21; A21B; A21B1/00; A21B1/42; A21B1/48; F; F27; F27B; F27B9/00; F27B9/06; F27B9/10
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) | 1911-05-05 | 1911-11-04 | 1912-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-05-05 | 1915-11-04 | 1916-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-05-05 | 1919-11-04 | 1920-05-05 | $7700.00 | Window Closed / Lapsed |