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Patent US2160263A successfully refreshed from Google Patents.
US2160263A
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Pipe joint and method of making same
Assignee: Hughes Tool Co
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Filing: 1937-03-18
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Granted: 1939-05-30
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Expires: 1957-03-18
Abstract
No abstract record available.
Inventors
- 👤 Harold W Fletcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:40
CPC Classifications
F; F16; F16L; F16L15/00; F16L15/001; Y; Y10; Y10S; Y10S285/00; Y10S285/916; Y10S29/00; Y10S29/043; Y10T; Y10T29/00; Y10T29/49; Y10T29/49428; Y10T29/49826; Y10T29/49908; Y10T29/49938; Y10T29/4994
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) | 1942-05-29 | 1942-11-28 | 1943-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-05-29 | 1946-11-28 | 1947-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-05-29 | 1950-11-28 | 1951-05-30 | $7700.00 | Window Closed / Lapsed |