US1211080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill-bit and sectional rod therefor.
Assignee: Ingersoll Rand Co
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Filing: 1914-06-09
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Granted: 1917-01-02
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Expires: 1934-06-09
Abstract
No abstract record available.
Inventors
- 👤 Russell S Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:35
CPC Classifications
E; E21; E21B; E21B21/00; E21B21/10; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6161; Y10T137/6164; Y10T137/6167; Y10T137/6171; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7927; Y10T279/00; Y10T279/17; Y10T279/17931
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1920-01-02 | 1920-07-03 | 1921-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-01-02 | 1924-07-03 | 1925-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-01-02 | 1928-07-03 | 1929-01-02 | $7700.00 | Window Closed / Lapsed |