US2400856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting tool
Assignee: PIPE MACHINERY CO
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Filing: 1943-07-16
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Granted: 1946-05-21
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Expires: 1963-07-16
Abstract
No abstract record available.
Inventors
- 👤 Thompson John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:14
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/0002; B23B51/0003; B23B51/0004; B23B2251/00; B23B2251/14; B23B2251/48; B23B2251/50; B23B51/0006; B23B51/0007; Y; Y10; Y10S; Y10S408/00; Y10S408/713; Y10T; Y10T407/00; Y10T407/19; Y10T407/1906; Y10T407/1934; Y10T407/1936; Y10T407/1938; Y10T407/194; Y10T408/00; Y10T408/86; Y10T408/88; Y10T408/89; Y10T408/909; Y10T408/9098; Y10T408/90993
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) | 1949-05-20 | 1949-11-19 | 1950-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-05-20 | 1953-11-19 | 1954-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-05-20 | 1957-11-19 | 1958-05-21 | $7700.00 | Window Closed / Lapsed |