US1896957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reenforcement connected with reenforced concrete buildings, slabs, playgrounds, and such like
Assignee: Individual
•
Filing: 1930-05-07
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Granted: 1933-02-07
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Expires: 1950-05-07
Abstract
No abstract record available.
Inventors
- 👤 Hutcheson William James Fraser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:12
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/01; E04C5/06
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) | 1936-02-07 | 1936-08-08 | 1937-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-02-07 | 1940-08-08 | 1941-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-02-07 | 1944-08-08 | 1945-02-07 | $7700.00 | Window Closed / Lapsed |