US2428650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shearing tool
Assignee: AT&T Inc
•
Filing: 1945-05-17
•
Granted: 1947-10-07
•
Expires: 1965-05-17
Abstract
No abstract record available.
Inventors
- 👤 Anton J Brunner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:39
CPC Classifications
B; B23; B23D; B23D29/00; B23D29/02; B23D29/023; Y; Y10; Y10T; Y10T83/00; Y10T83/404; Y10T83/416
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1137093A
Cited
GB236491A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-06 | 1951-04-07 | 1951-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-06 | 1955-04-07 | 1955-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-06 | 1959-04-07 | 1959-10-07 | $7700.00 | Window Closed / Lapsed |