Patent US3029677A successfully refreshed from Google Patents.
US3029677A
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US
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Material cutters for multiple tool presses
Assignee: AT&T Inc
•
Filing: 1958-05-28
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Granted: 1962-04-17
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Expires: 1978-05-28
Abstract
No abstract record available.
Inventors
- 👤 John R Metzger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:48
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/24; B21D28/26; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8821; Y10T83/8828; Y10T83/8831; Y10T83/8867; Y10T83/929; Y10T83/9457; Y10T83/9473; Y10T83/9483; Y10T83/9486
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US362566A
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US700053A
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US1402284A
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US1370116A
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US1866855A
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US2317424A
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US2504642A
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US2689487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |