US20711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hing-clamp eob engravers
Assignee: —
•
Filing: —
•
Granted: 1858-06-29
•
Expires: 1875-06-29
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:48
CPC Classifications
B; B44; B44B; B44B3/00; B44B3/06; B44B3/065; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17231; Y10T279/17264; Y10T279/17273; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/20834; Y10T74/20864
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) | 1861-06-28 | 1861-12-28 | 1862-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1865-06-28 | 1865-12-28 | 1866-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1869-06-28 | 1869-12-28 | 1870-06-29 | $7700.00 | Window Closed / Lapsed |