US182193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in metallic roofs
Assignee: —
•
Filing: —
•
Granted: 1876-09-12
•
Expires: 1893-09-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:17
CPC Classifications
E; E04; E04D; E04D3/00; E04D3/36; E04D3/366; E04B; E04B9/00; E04B9/06; E04B9/065; E04B9/067; E04B9/068
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) | 1879-09-12 | 1880-03-13 | 1880-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1883-09-12 | 1884-03-13 | 1884-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1887-09-12 | 1888-03-13 | 1888-09-12 | $7700.00 | Window Closed / Lapsed |