US2726104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe joint swivel with fluid seal
Assignee: OIL CENTER TOOL CO
•
Filing: 1952-11-17
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Granted: 1955-12-06
•
Expires: 1972-11-17
Abstract
No abstract record available.
Inventors
- 👤 Boyd D Boitnott
- 👤 John P Zawacki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:55
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/08; F16L27/0804; F16L27/0808; F16L27/0812; F16L27/082; Y; Y10; Y10S; Y10S251/00; Y10S251/90; Y10S285/00; Y10S285/909; Y10S285/918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1015904A
Cited
US1027586A
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US1125642A
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US1334130A
Cited
US1450126A
Cited
US2195003A
Cited
US2494598A
Cited
US2567527A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-05 | 1959-06-06 | 1959-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-05 | 1963-06-06 | 1963-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-05 | 1967-06-06 | 1967-12-06 | $7700.00 | Window Closed / Lapsed |