Patent US1127822A successfully refreshed from Google Patents.
US1127822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feed-control valve.
Assignee: MCKIERNAN-TERRY DRILL Co
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Filing: 1914-01-30
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Granted: 1915-02-09
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Expires: 1934-01-30
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Sturtevant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:54
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/08; E21B19/084; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86638; Y10T137/86646
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) | 1918-02-08 | 1918-08-10 | 1919-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-02-08 | 1922-08-10 | 1923-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-02-08 | 1926-08-10 | 1927-02-09 | $7700.00 | Window Closed / Lapsed |