Patent US1569740A successfully refreshed from Google Patents.
US1569740A
Expired / Lapsed
US
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Pipe-threading die
Assignee: COX AND SONS Co
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Filing: 1922-11-02
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Granted: 1926-01-12
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Expires: 1942-11-02
Abstract
No abstract record available.
Inventors
- 👤 Warren E Glaspey
- 👤 Frederic W Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:50
CPC Classifications
B; B23; B23G; B23G1/00; B23G1/22; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17666; Y10T279/17692; Y10T279/17717; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/858; Y10T408/859; Y10T408/8591
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) | 1929-01-11 | 1929-07-13 | 1930-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-01-11 | 1933-07-13 | 1934-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-01-11 | 1937-07-13 | 1938-01-12 | $7700.00 | Window Closed / Lapsed |