Patent US859304A successfully refreshed from Google Patents.
US859304A
Expired / Lapsed
US
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Oil-well packer.
Assignee: Individual
•
Filing: 1906-06-27
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Granted: 1907-07-09
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Expires: 1926-06-27
Abstract
No abstract record available.
Inventors
- 👤 William H Larkin
- 👤 John D Brooder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:40
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/128
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) | 1910-07-08 | 1911-01-07 | 1911-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-07-08 | 1915-01-07 | 1915-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-07-08 | 1919-01-07 | 1919-07-09 | $7700.00 | Window Closed / Lapsed |