US132324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in carbonized paper
Assignee: —
•
Filing: —
•
Granted: 1872-10-15
•
Expires: 1889-10-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:33
CPC Classifications
B; B29; B29C; B29C73/00; B29C73/04; B29C73/10; B32; B32B; B32B27/00; B32B27/12; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24777; Y10T428/24793
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) | 1875-10-15 | 1876-04-15 | 1876-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1879-10-15 | 1880-04-15 | 1880-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1883-10-15 | 1884-04-15 | 1884-10-15 | $7700.00 | Window Closed / Lapsed |