Patent US2116070A successfully refreshed from Google Patents.
US2116070A
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US
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Heat treatment of ferrous sections
Assignee: American Brake Shoe and Foundry Co
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Filing: 1936-01-27
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Granted: 1938-05-03
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Expires: 1956-01-27
Abstract
No abstract record available.
Inventors
- 👤 Hoffman Paul
- 👤 Bender William
- 👤 Cook Earnshaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:40
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/04; C21D1/00; C21D1/34; C21D1/44; C21D1/48; C21D1/62; C21D1/63
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) | 1941-05-02 | 1941-11-01 | 1942-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-05-02 | 1945-11-01 | 1946-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-05-02 | 1949-11-01 | 1950-05-03 | $7700.00 | Window Closed / Lapsed |