US2211183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reamer for well pipe joints
Assignee: Hydril LLC
•
Filing: 1938-09-12
•
Granted: 1940-08-13
•
Expires: 1958-09-12
Abstract
No abstract record available.
Inventors
- 👤 Jean A Tytus
- 👤 Albert L Stone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:22
CPC Classifications
B; B23; B23B; B23B5/00; B23B5/16; B23B5/161; B23B5/162; B23B5/163; E; E21; E21B; E21B17/00; E21B17/006; Y; Y10; Y10T; Y10T407/00; Y10T407/19; Y10T407/1906; Y10T407/1908; Y10T407/192; Y10T408/00; Y10T408/55; Y10T408/557; Y10T408/558; Y10T408/5583; Y10T408/559; Y10T408/564; Y10T408/5653; Y10T409/00; Y10T409/30; Y10T409/306664; Y10T409/306776
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) | 1943-08-13 | 1944-02-12 | 1944-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-08-13 | 1948-02-12 | 1948-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-08-13 | 1952-02-12 | 1952-08-13 | $7700.00 | Window Closed / Lapsed |