Patent US179387A successfully refreshed from Google Patents.
US179387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in processes of enameling wrought-iron
Assignee: —
•
Filing: —
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Granted: 1876-06-27
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Expires: 1893-06-27
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:51
CPC Classifications
C; C23; C23D; C23D3/00
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) | 1879-06-27 | 1879-12-27 | 1880-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1883-06-27 | 1883-12-27 | 1884-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1887-06-27 | 1887-12-27 | 1888-06-27 | $7700.00 | Window Closed / Lapsed |