Patent US1328712A successfully refreshed from Google Patents.
US1328712A
Expired / Lapsed
US
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Method of melting brass and similar scrap
Assignee: Bridgeport Brass Co
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Filing: 1918-05-06
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Granted: 1920-01-20
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Expires: 1938-05-06
Abstract
No abstract record available.
Inventors
- 👤 Walter R Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:53
CPC Classifications
C; C22; C22B; C22B9/00; C22B9/16; C21; C21C; C21C5/00; C21C5/56; C21C5/562; H; H05; H05B; H05B6/00; H05B6/02; H05B6/16; H05B6/20; Y; Y02; Y02P; Y02P10/00; Y02P10/20; Y02P10/25
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) | 1923-01-19 | 1923-07-21 | 1924-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-01-19 | 1927-07-21 | 1928-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-01-19 | 1931-07-21 | 1932-01-20 | $7700.00 | Window Closed / Lapsed |