Patent US1852579A successfully refreshed from Google Patents.
US185489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in postal-paper tablets
Assignee: —
•
Filing: —
•
Granted: 1876-12-19
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Expires: 1893-12-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:36
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/08; B65D83/0847; B42; B42F; B42F7/00; B42F7/10; Y; Y10; Y10S; Y10S206/00; Y10S206/813; Y10S206/82
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) | 1879-12-19 | 1880-06-19 | 1880-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1883-12-19 | 1884-06-19 | 1884-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1887-12-19 | 1888-06-19 | 1888-12-19 | $7700.00 | Window Closed / Lapsed |