Patent US862681A successfully refreshed from Google Patents.
US862681A
Expired / Lapsed
US
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Fireproof column.
Assignee: AMERICAN COLUMN Co
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Filing: 1905-10-23
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Granted: 1907-08-06
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Expires: 1925-10-23
Abstract
No abstract record available.
Inventors
- 👤 John J Tresidder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:59
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/16; E04C5/161
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) | 1910-08-05 | 1911-02-04 | 1911-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-08-05 | 1915-02-04 | 1915-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-08-05 | 1919-02-04 | 1919-08-06 | $7700.00 | Window Closed / Lapsed |