US806832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastening device for use in building construction.
Assignee: UNIT CONCRETE STEEL FRAME Co
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Filing: 1905-04-15
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Granted: 1905-12-12
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Expires: 1925-04-15
Abstract
No abstract record available.
Inventors
- 👤 Emile G Perrot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:22
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/38; E04B1/41; E04B1/4114; E04B1/4121
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) | 1908-12-11 | 1909-06-12 | 1909-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-12-11 | 1913-06-12 | 1913-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-12-11 | 1917-06-12 | 1917-12-12 | $7700.00 | Window Closed / Lapsed |