Patent US831230A successfully refreshed from Google Patents.
US831230A
Expired / Lapsed
US
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Building-block machine.
Assignee: JOSEPH KRISCHKE JR
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Filing: 1905-10-07
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Granted: 1906-09-18
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Expires: 1925-10-07
Abstract
No abstract record available.
Inventors
- 👤 Samuel A Latimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:50
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/16; B28B7/18; B28B7/183
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) | 1909-09-17 | 1910-03-19 | 1910-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-09-17 | 1914-03-19 | 1914-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-09-17 | 1918-03-19 | 1918-09-18 | $7700.00 | Window Closed / Lapsed |