US2598459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Masonry drill
Assignee: SUPER TOOL Co
•
Filing: 1947-02-07
•
Granted: 1952-05-27
•
Expires: 1967-02-07
Abstract
No abstract record available.
Inventors
- 👤 Milton J Steffes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:09
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/46; E21B10/58; B; B28; B28D; B28D1/00; B28D1/14; B28D1/146
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |