US37189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved mode of punching countersunk holes
Assignee: —
•
Filing: —
•
Granted: 1862-12-16
•
Expires: 1879-12-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:04
CPC Classifications
B; B26; B26F; B26F3/00; B26F3/002; B26D; B26D7/00; B26D7/18; B26D7/1818; Y; Y10; Y10T; Y10T225/00; Y10T225/10; Y10T225/30; Y10T29/00; Y10T29/51; Y10T29/5147; Y10T83/00; Y10T83/04; Y10T83/929; Y10T83/9411; Y10T83/9423; Y10T83/9425
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1865-12-15 | 1866-06-16 | 1866-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1869-12-15 | 1870-06-16 | 1870-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1873-12-15 | 1874-06-16 | 1874-12-16 | $7700.00 | Window Closed / Lapsed |