Patent US3454113A successfully refreshed from Google Patents.
US3454113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adapter for driving posts by means of a power hammer
Assignee: Skil Corp
•
Filing: 1967-06-12
•
Granted: 1969-07-08
•
Expires: 1987-06-12
Abstract
No abstract record available.
Inventors
- 👤 Ralph F Holtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:00
CPC Classifications
E; E04; E04H; E04H17/00; E04H17/26; E04H17/261; E04H17/263
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |