Patent US2035142A successfully refreshed from Google Patents.
US2035142A
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US
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Method of making brake drums
Assignee: Campbell Wyant and Cannon Foundry Co
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Filing: 1931-06-15
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Granted: 1936-03-24
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Expires: 1951-06-15
Abstract
No abstract record available.
Inventors
- 👤 Donald J Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:35
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/26; B21D53/34; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49789; Y10T29/49792; Y10T29/4998; Y10T29/49988; Y10T29/49989
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) | 1939-03-24 | 1939-09-23 | 1940-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-03-24 | 1943-09-23 | 1944-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-03-24 | 1947-09-23 | 1948-03-24 | $7700.00 | Window Closed / Lapsed |