Patent US3407511A successfully refreshed from Google Patents.
Patent US1017847A successfully refreshed from Google Patents.
US1017847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil-well pump.
Assignee: Individual
•
Filing: 1911-08-24
•
Granted: 1912-02-20
•
Expires: 1931-08-24
Abstract
No abstract record available.
Inventors
- 👤 Irving Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:01
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/12; E21B43/121
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1915-02-19 | 1915-08-21 | 1916-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-02-19 | 1919-08-21 | 1920-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-02-19 | 1923-08-21 | 1924-02-20 | $7700.00 | Window Closed / Lapsed |