US2684834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Horizontal boring machine
Assignee: Individual
•
Filing: 1950-10-07
•
Granted: 1954-07-27
•
Expires: 1970-10-07
Abstract
No abstract record available.
Inventors
- 👤 Clare G Miller
- 👤 John D Osborn
- 👤 Osborn John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:11
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/04; E21B7/046; E21B7/28
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1172065A
Cited
US1765296A
Cited
US1932068A
Cited
US2226643A
Cited
US2215047A
Cited
US2338351A
Cited
US2587105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-26 | 1958-01-25 | 1958-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-26 | 1962-01-25 | 1962-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-26 | 1966-01-25 | 1966-07-27 | $7700.00 | Window Closed / Lapsed |