US2679057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic taper thread forming machine
Assignee: PIPE MACHINERY CO
•
Filing: 1949-09-28
•
Granted: 1954-05-25
•
Expires: 1969-09-28
Abstract
No abstract record available.
Inventors
- 👤 Neil T Sawdey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:25
CPC Classifications
B; B23; B23G; B23G1/00; B23G1/22; Y; Y10; Y10T; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/858; Y10T408/8588; Y10T82/00; Y10T82/25; Y10T82/2531
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2017764A
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US2116639A
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US2130181A
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US2249395A
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US2250349A
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US2219316A
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US2551517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |