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US2808599A
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Pipe threading die head assembly
Assignee: Union Carbide Corp
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Filing: 1955-12-23
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Granted: 1957-10-08
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Expires: 1975-12-23
Abstract
No abstract record available.
Inventors
- 👤 Karl K Kerr
- 👤 Jr Edward J Kleber
- 👤 Samuel H S Raub
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:54
CPC Classifications
B; B23; B23G; B23G1/00; B23G1/22; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/557; Y10T408/558; Y10T408/89; Y10T408/904; Y10T408/9044; Y10T408/9045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1053482A
Cited
US2744269A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |