Patent US1928409A successfully refreshed from Google Patents.
US1928409A
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Furnace for and method of continuously annealing strip metal
Assignee: American Brass Co
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Filing: 1932-09-28
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Granted: 1933-09-26
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Expires: 1952-09-28
Abstract
No abstract record available.
Inventors
- 👤 James R Coe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:39
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/52; C21D9/54; C21D9/56; B; B21; B21B; B21B15/00; B21B15/0085; Y; Y10; Y10T; Y10T29/00; Y10T29/45; Y10T29/4517
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) | 1936-09-25 | 1937-03-27 | 1937-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-09-25 | 1941-03-27 | 1941-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-09-25 | 1945-03-27 | 1945-09-26 | $7700.00 | Window Closed / Lapsed |