US786573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for spraying blast-furnace cinder.
Assignee: Gesellschaft fur TROCKENZERSTAENBUNG FLUESSIGER MATERIEN mbH
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Filing: 1902-11-13
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Granted: 1905-04-04
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Expires: 1922-11-13
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm Lessing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:47
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/04; C03B37/05
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) | 1908-04-03 | 1908-10-03 | 1909-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-04-03 | 1912-10-03 | 1913-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-04-03 | 1916-10-03 | 1917-04-04 | $7700.00 | Window Closed / Lapsed |