US1044873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint for well-casings.
Assignee: Individual
•
Filing: 1909-11-20
•
Granted: 1912-11-19
•
Expires: 1929-11-20
Abstract
No abstract record available.
Inventors
- 👤 Albert G Felker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:29
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/02; E21B17/04; E21B17/042; F; F16; F16L; F16L27/00; Y; Y10; Y10T; Y10T403/00; Y10T403/67; Y10T403/70; Y10T403/7075; Y10T403/7077; Y10T403/7079
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) | 1915-11-19 | 1916-05-20 | 1916-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-11-19 | 1920-05-20 | 1920-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-11-19 | 1924-05-20 | 1924-11-19 | $7700.00 | Window Closed / Lapsed |