US193117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in slate-frame attachments
Assignee: —
•
Filing: —
•
Granted: 1877-07-17
•
Expires: 1894-07-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:51
CPC Classifications
B; B43; B43L; B43L13/00; B43L13/005
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) | 1880-07-16 | 1881-01-15 | 1881-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1884-07-16 | 1885-01-15 | 1885-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1888-07-16 | 1889-01-15 | 1889-07-17 | $7700.00 | Window Closed / Lapsed |