US2665115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Percussion tool for wells
Assignee: Individual
•
Filing: 1950-02-13
•
Granted: 1954-01-05
•
Expires: 1970-02-13
Abstract
No abstract record available.
Inventors
- 👤 Bassinger Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:18
CPC Classifications
E; E21; E21B; E21B4/00; E21B4/06; E21B4/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1892517A
Cited
US1861042A
Cited
US2002387A
Cited
US2245786A
Cited
US2344725A
Cited
US2507585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |