Patent US1415516A successfully refreshed from Google Patents.
US1415516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for reducing metals, etc.
Assignee: Individual
•
Filing: 1919-05-29
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Granted: 1922-05-09
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Expires: 1939-05-29
Abstract
No abstract record available.
Inventors
- 👤 Bridge Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:55
CPC Classifications
C; C22; C22B; C22B34/00; C22B5/00; C22B5/02; C22B5/04; Y; Y10; Y10S; Y10S75/00; Y10S75/959
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) | 1925-05-08 | 1925-11-07 | 1926-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-05-08 | 1929-11-07 | 1930-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-05-08 | 1933-11-07 | 1934-05-09 | $7700.00 | Window Closed / Lapsed |