Patent US3041050A successfully refreshed from Google Patents.
US3041050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor tube assembly
Assignee: United States Smelting Refining and Mining Co
•
Filing: 1958-05-12
•
Granted: 1962-06-26
•
Expires: 1978-05-12
Abstract
No abstract record available.
Inventors
- 👤 Archie A Nelson
- 👤 Lester K Scholl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:14
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/14; B03D1/16; B03D1/1418
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1816562A
Cited
US1963122A
Cited
US2191739A
Cited
US2235604A
Cited
US2648529A
Cited
US2767965A
Cited
US2769623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |