Patent US183160A successfully refreshed from Google Patents.
US183160A
Expired / Lapsed
US
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Improvement in composite metallic girders
Assignee: —
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Filing: —
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Granted: 1876-10-10
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Expires: 1893-10-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:42
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/02; E04C3/04; E04C3/06; B; B23; B23K; B23K20/00; B23K20/12; B23K20/122; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12347; Y10T428/12375; Y10T428/12486; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12951; Y10T428/12958
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) | 1879-10-10 | 1880-04-10 | 1880-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1883-10-10 | 1884-04-10 | 1884-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1887-10-10 | 1888-04-10 | 1888-10-10 | $7700.00 | Window Closed / Lapsed |