Patent US968022A successfully refreshed from Google Patents.
US968022A
Expired / Lapsed
US
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Pipe-pusher.
Assignee: BAKER AND MARTIN Manufacturing Co
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Filing: 1910-03-05
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Granted: 1910-08-23
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Expires: 1930-03-05
Abstract
No abstract record available.
Inventors
- 👤 William H Abbott
- 👤 Horace G Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:37
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/04; E21B7/046
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) | 1913-08-22 | 1914-02-21 | 1914-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-08-22 | 1918-02-21 | 1918-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-08-22 | 1922-02-21 | 1922-08-23 | $7700.00 | Window Closed / Lapsed |