US2767428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making torquetransmitting elements
Assignee: Borg Warner Corp
•
Filing: 1952-04-12
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Granted: 1956-10-23
•
Expires: 1972-04-12
Abstract
No abstract record available.
Inventors
- 👤 Vernon J Pingel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:31
CPC Classifications
B; B22; B22F; B22F5/00; B22F5/08; B22F5/085; B29; B29C; B29C43/00; B22F2998/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2311940A
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US2209404A
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US2300302A
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US2385617A
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US2483267A
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US2522712A
Cited
US2561735A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |