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Patent US819868A successfully refreshed from Google Patents.
US819868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Die-stock.
Assignee: Individual
•
Filing: 1905-01-26
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Granted: 1906-05-08
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Expires: 1925-01-26
Abstract
No abstract record available.
Inventors
- 👤 Fred B Downs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:28
CPC Classifications
B; B23; B23G; B23G5/00; B23G5/08; Y; Y10; Y10T; Y10T408/00; Y10T408/36; Y10T408/375; Y10T408/83; Y10T408/85; Y10T408/858; Y10T408/859; Y10T408/8591
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) | 1909-05-07 | 1909-11-06 | 1910-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-05-07 | 1913-11-06 | 1914-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-05-07 | 1917-11-06 | 1918-05-08 | $7700.00 | Window Closed / Lapsed |