Patent US3781966A successfully refreshed from Google Patents.
Patent US654164A successfully refreshed from Google Patents.
US654164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion-drill.
Assignee: Individual
•
Filing: 1899-10-12
•
Granted: 1900-07-24
•
Expires: 1919-10-12
Abstract
No abstract record available.
Inventors
- 👤 Henry J Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:18
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/26; E21B10/32
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) | 1903-07-24 | 1904-01-23 | 1904-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-07-24 | 1908-01-23 | 1908-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-07-24 | 1912-01-23 | 1912-07-24 | $7700.00 | Window Closed / Lapsed |