US235866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-peters
Assignee: —
•
Filing: 1880-09-25
•
Granted: 1880-12-28
•
Expires: 1900-09-25
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:51
CPC Classifications
F; F21; F21V; F21V13/00; F21V13/02; G; G02; G02B; G02B3/00; G02B3/02; G02B3/08; G02B3/12; G02B5/00; G02B5/04; G02B5/045
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) | 1883-12-28 | 1884-06-28 | 1884-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1887-12-28 | 1888-06-28 | 1888-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1891-12-28 | 1892-06-28 | 1892-12-28 | $7700.00 | Window Closed / Lapsed |