US831551A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamping-joint for drills.
Assignee: Individual
•
Filing: 1906-01-26
•
Granted: 1906-09-25
•
Expires: 1926-01-26
Abstract
No abstract record available.
Inventors
- 👤 Charles W Guttzeit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:36
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/14; F16L13/141; E; E21; E21B; E21B17/00; E21B17/02; E21B17/04; E21B17/046
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) | 1909-09-24 | 1910-03-26 | 1910-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-09-24 | 1914-03-26 | 1914-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-09-24 | 1918-03-26 | 1918-09-25 | $7700.00 | Window Closed / Lapsed |