Patent US407981A successfully refreshed from Google Patents.
US407981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Eighths to lemuel a
Assignee: —
•
Filing: —
•
Granted: 1889-07-30
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Expires: 1906-07-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:54
CPC Classifications
F; F16; F16K; F16K47/00; F16K47/08; F16K47/10; Y; Y10; Y10S; Y10S261/00; Y10S261/49; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7847; Y10T137/7869; Y10T137/7871; Y10T137/7874
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) | 1892-07-29 | 1893-01-28 | 1893-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1896-07-29 | 1897-01-28 | 1897-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1900-07-30 | 1901-01-29 | 1901-07-31 | $7700.00 | Window Closed / Lapsed |