US277950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
sotjder
Assignee: —
•
Filing: —
•
Granted: 1883-05-22
•
Expires: 1900-05-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:26
CPC Classifications
B; B02; B02B; B02B3/00; B02B3/02; B02C; B02C4/00; B02C4/10; B02C4/12; B02C4/16
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) | 1886-05-21 | 1886-11-20 | 1887-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1890-05-21 | 1890-11-20 | 1891-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1894-05-21 | 1894-11-20 | 1895-05-22 | $7700.00 | Window Closed / Lapsed |