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US2907590A
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Packed swivel joint with anti-friction means to reduce packing wear
Assignee: FRANCIS N BARD
•
Filing: 1955-10-10
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Granted: 1959-10-06
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Expires: 1975-10-10
Abstract
No abstract record available.
Inventors
- 👤 Harry J Oswald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:09
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/08; F16L27/0804; F16L27/0808; F16L27/0812; F16L27/0816; F16L41/00; F16L41/007; Y; Y10; Y10S; Y10S277/00; Y10S277/907; Y10S277/91; Y10S285/00; Y10S285/909; Y10S285/918
Claims Analysis
Total Claims: 0
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |