US2174880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of cleaning elongated metal shapes
Assignee: Individual
•
Filing: 1938-10-05
•
Granted: 1939-10-03
•
Expires: 1958-10-05
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Hilbish
- 👤 John K Mccahan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:20
CPC Classifications
B; B24; B24B; B24B31/00; B24B31/02; B24B31/027; C; C23; C23G; C23G3/00; C23G3/04
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) | 1942-10-02 | 1943-04-03 | 1943-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-10-02 | 1947-04-03 | 1947-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-10-02 | 1951-04-03 | 1951-10-03 | $7700.00 | Window Closed / Lapsed |