US128840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in tooth-brushes
Assignee: —
•
Filing: —
•
Granted: 1872-07-09
•
Expires: 1889-07-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:51
CPC Classifications
A; A46; A46B; A46B9/00; A46B9/02; A46B9/04; A46B2200/00; A46B2200/10; A46B2200/1066
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) | 1875-07-09 | 1876-01-08 | 1876-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1879-07-09 | 1880-01-08 | 1880-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1883-07-09 | 1884-01-08 | 1884-07-09 | $7700.00 | Window Closed / Lapsed |