Patent US439794A successfully refreshed from Google Patents.
US439794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of picker stems for cotton harvesters
Assignee: —
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Filing: —
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Granted: 1890-11-04
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Expires: 1907-11-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:04
CPC Classifications
B; B21; B21D; B21D13/00; B21D13/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49544; Y10T29/4956; Y10T29/49561; Y10T407/00; Y10T407/18; Y10T407/1815
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) | 1893-11-03 | 1894-05-05 | 1894-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1897-11-03 | 1898-05-05 | 1898-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1901-11-04 | 1902-05-06 | 1902-11-05 | $7700.00 | Window Closed / Lapsed |