US2570347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swivel joint
Assignee: Hoover Co
•
Filing: 1946-08-15
•
Granted: 1951-10-09
•
Expires: 1966-08-15
Abstract
No abstract record available.
Inventors
- 👤 Warren A Humphrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:22
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/08; A; A47; A47L; A47L9/00; A47L9/02; A47L9/06; A47L9/0606; A47L9/0613
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR25712E
Cited
US1739341A
Cited
US1857847A
Cited
US1985781A
Cited
GB481974A
Cited
US2175646A
Cited
US2190679A
Cited
US2260038A
Cited
US2310554A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-08 | 1955-04-09 | 1955-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-08 | 1959-04-09 | 1959-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-08 | 1963-04-09 | 1963-10-09 | $7700.00 | Window Closed / Lapsed |