Patent US2613059A successfully refreshed from Google Patents.
US2613059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well drilling rig
Assignee: United States Steel Corp
•
Filing: 1946-06-05
•
Granted: 1952-10-07
•
Expires: 1966-06-05
Abstract
No abstract record available.
Inventors
- 👤 August R Maier
- 👤 John W Jacoby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:37
CPC Classifications
E; E21; E21B; E21B3/00; E21B3/02; E21B3/04; E21B3/06; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19014
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1360394A
Cited
US2026709A
Cited
US1990810A
Cited
US2071778A
Cited
US2096150A
Cited
US2251443A
Cited
US2171994A
Cited
US2405546A
Cited
US2243156A
Cited
US2237864A
Cited
US2246478A
Cited
US2251445A
Cited
US2351851A
Cited
US2354174A
Cited
US2331180A
Cited
US2462944A
Cited
US2536483A
Cited
US2576872A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-07 | 1956-04-07 | 1956-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-07 | 1960-04-07 | 1960-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-07 | 1964-04-07 | 1964-10-07 | $7700.00 | Window Closed / Lapsed |