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US1351003A
Expired / Lapsed
US
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Well-drilling bit for oil, water, or gas
Assignee: Acme Oil & Drill Co Inc
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Filing: 1919-07-19
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Granted: 1920-08-24
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Expires: 1939-07-19
Abstract
No abstract record available.
Inventors
- 👤 Jefferson D Pace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:39
CPC Classifications
E; E21; E21B; E21B21/00; E21B21/10; E21B10/00; E21B10/02; E21B10/26; E21B10/62; E21B25/00
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) | 1923-08-24 | 1924-02-23 | 1924-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-08-24 | 1928-02-23 | 1928-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-08-24 | 1932-02-23 | 1932-08-24 | $7700.00 | Window Closed / Lapsed |