Patent US1502129A successfully refreshed from Google Patents.
US1502129A
Expired / Lapsed
US
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Process of melting scrap metal and recovering by-products therefrom
Assignee: U S Reduction Co
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Filing: 1919-12-18
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Granted: 1924-07-22
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Expires: 1939-12-18
Abstract
No abstract record available.
Inventors
- 👤 George H Starmann
- 👤 Lindenberger Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:20
CPC Classifications
C; C22; C22B; C22B21/00; C22B21/0084; C22B21/0092; Y; Y02; Y02P; Y02P10/00; Y02P10/20
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) | 1927-07-22 | 1928-01-21 | 1928-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-07-22 | 1932-01-21 | 1932-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-07-22 | 1936-01-21 | 1936-07-22 | $7700.00 | Window Closed / Lapsed |