Patent US2328898A successfully refreshed from Google Patents.
US2328898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary joint
Assignee: Johnson Corp
•
Filing: 1941-01-16
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Granted: 1943-09-07
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Expires: 1961-01-16
Abstract
No abstract record available.
Inventors
- 👤 Leonard D Goff
- 👤 Rollo O Monroe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:47
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/02; F16L27/04; F16L27/042; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32631; Y10T403/32737; Y10T403/32754
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-09-06 | 1947-03-08 | 1947-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-09-06 | 1951-03-08 | 1951-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-09-06 | 1955-03-08 | 1955-09-07 | $7700.00 | Window Closed / Lapsed |