Patent US2848187A successfully refreshed from Google Patents.
US2848187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball type swivel valve seat
Assignee: —
•
Filing: —
•
Granted: 1958-08-19
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Expires: 1975-08-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:45
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/16; F16K1/18; F16K1/20; F16K5/00; F16K5/06; F16K5/0663; F16K5/0673
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US600360A
Cited
US2277395A
Cited
US1293976A
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US1411904A
Cited
US1763927A
Cited
US1693032A
Cited
US1991052A
Cited
US2352249A
Cited
US2281689A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |