Patent US66968A successfully refreshed from Google Patents.
US66968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
kendig
Assignee: —
•
Filing: —
•
Granted: 1867-07-23
•
Expires: 1884-07-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:23
CPC Classifications
B; B42; B42F; B42F3/00; Y; Y10; Y10S; Y10S411/00; Y10S411/92; Y10T; Y10T24/00; Y10T24/36; Y10T24/3611; Y10T24/3615
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) | 1870-07-22 | 1871-01-21 | 1871-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1874-07-22 | 1875-01-21 | 1875-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1878-07-22 | 1879-01-21 | 1879-07-23 | $7700.00 | Window Closed / Lapsed |