Patent US537808A successfully refreshed from Google Patents.
US537808A
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US
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Assignee: —
•
Filing: —
•
Granted: 1895-04-16
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Expires: 1912-04-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:32
CPC Classifications
B; B23; B23D; B23D33/00; B23D33/02; B23D33/025; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2198; Y10T83/465; Y10T83/472; Y10T83/546; Y10T83/647; Y10T83/6668; Y10T83/869; Y10T83/8789; Y10T83/8794
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) | 1898-04-15 | 1898-10-15 | 1899-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1902-04-16 | 1902-10-16 | 1903-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1906-04-16 | 1906-10-16 | 1907-04-17 | $7700.00 | Window Closed / Lapsed |