US2837156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube cutting die
Assignee: ZF Active Safety US Inc
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Filing: 1954-02-08
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Granted: 1958-06-03
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Expires: 1974-02-08
Abstract
No abstract record available.
Inventors
- 👤 Charles M Brehm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:06
CPC Classifications
B; B21; B21D; B21D43/00; B21D43/28; B21D43/285; B23; B23D; B23D21/00; B23D21/14; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2027; Y10T83/2029; Y10T83/2092; Y10T83/2096; Y10T83/384; Y10T83/387; Y10T83/395; Y10T83/396; Y10T83/397; Y10T83/444; Y10T83/4463; Y10T83/4465; Y10T83/4493; Y10T83/869; Y10T83/8726
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |