Patent US1972578A successfully refreshed from Google Patents.
US753053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joist-hanger
Assignee: —
•
Filing: —
•
Granted: 1904-02-23
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Expires: 1921-02-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:08
CPC Classifications
F; F16; F16B; F16B7/00; F16B7/04; F16B7/044; F16B7/0446; F16B9/00; F16B9/05; F16B9/052; F16B2200/00; F16B2200/50; F16B2200/503
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) | 1907-02-22 | 1907-08-24 | 1908-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-02-22 | 1911-08-24 | 1912-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-02-22 | 1915-08-24 | 1916-02-23 | $7700.00 | Window Closed / Lapsed |