US130140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in forming curved electrotypes
Assignee: —
•
Filing: —
•
Granted: 1872-08-06
•
Expires: 1889-08-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:40
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/02; B29C43/10; B29C43/12; Y; Y10; Y10S; Y10S264/00; Y10S264/50
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) | 1875-08-06 | 1876-02-05 | 1876-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1879-08-06 | 1880-02-05 | 1880-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1883-08-06 | 1884-02-05 | 1884-08-06 | $7700.00 | Window Closed / Lapsed |