Patent US2709573A successfully refreshed from Google Patents.
US2709573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Earth auger
Assignee: Individual
•
Filing: 1951-03-05
•
Granted: 1955-05-31
•
Expires: 1971-03-05
Abstract
No abstract record available.
Inventors
- 👤 Forrest E Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:49
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/44
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US76188A
Cited
US558994A
Cited
US1376224A
Cited
US1466378A
Cited
US1849510A
Cited
US2201159A
Cited
US2239461A
Cited
US2613062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-30 | 1958-11-29 | 1959-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-30 | 1962-11-29 | 1963-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-30 | 1966-11-29 | 1967-05-31 | $7700.00 | Window Closed / Lapsed |