US145274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in metallic foils for dental purposes
Assignee: —
•
Filing: —
•
Granted: 1873-12-09
•
Expires: 1890-12-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:31
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/01; B32B15/018; C; C23; C23C; C23C26/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T428/00; Y10T428/12; Y10T428/12431; Y10T428/12438; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12875; Y10T428/12889
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) | 1876-12-08 | 1877-06-09 | 1877-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1880-12-08 | 1881-06-09 | 1881-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1884-12-08 | 1885-06-09 | 1885-12-09 | $7700.00 | Window Closed / Lapsed |