Patent US2614416A successfully refreshed from Google Patents.
US1870577A
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Method of heat treating strip material
Assignee: COLD METAL PROCESS CO
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Filing: 1930-03-17
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Granted: 1932-08-09
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Expires: 1950-03-17
Abstract
No abstract record available.
Inventors
- 👤 Howard S Lamb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:22
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/52; C21D9/54; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12333
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) | 1935-08-09 | 1936-02-08 | 1936-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-08-09 | 1940-02-08 | 1940-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-08-09 | 1944-02-08 | 1944-08-09 | $7700.00 | Window Closed / Lapsed |