Patent US2204983A successfully refreshed from Google Patents.
US706347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fireproof floor construction.
Assignee: AMERICAN CONCRETE-STEEL Co
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Filing: 1902-03-25
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Granted: 1902-08-05
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Expires: 1922-03-25
Abstract
No abstract record available.
Inventors
- 👤 John T Simpson
- 👤 Marshall N Shoemaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:22
CPC Classifications
E; E04; E04B; E04B5/00; E04B5/16; E04B5/17; E04B5/23; E04B5/29
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) | 1905-08-04 | 1906-02-03 | 1906-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-08-04 | 1910-02-03 | 1910-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-08-04 | 1914-02-03 | 1914-08-05 | $7700.00 | Window Closed / Lapsed |