US172540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in conductors punches
Assignee: —
•
Filing: —
•
Granted: 1876-01-18
•
Expires: 1893-01-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:27
CPC Classifications
B; B26; B26D; B26D1/00; B26D1/01; B26D1/12; B26D1/14; B26D1/143; B26F; B26F1/00; B26F1/32; B26F1/36; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2096; Y10T83/2135; Y10T83/215; Y10T83/2155; Y10T83/2157; Y10T83/222; Y10T83/869; Y10T83/8821; Y10T83/8841; Y10T83/8845
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) | 1879-01-17 | 1879-07-19 | 1880-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1883-01-17 | 1883-07-19 | 1884-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1887-01-17 | 1887-07-19 | 1888-01-18 | $7700.00 | Window Closed / Lapsed |