US2526336A
Expired / Lapsed
US
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Article forming apparatus
Assignee: AT&T Inc
•
Filing: 1945-05-02
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Granted: 1950-10-17
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Expires: 1965-05-02
Abstract
No abstract record available.
Inventors
- 👤 Daniel J Diekmann
- 👤 Polivka Rudolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:26
CPC Classifications
B; B23; B23D; B23D21/00; B23D21/02; B23D31/00; B23D31/001; Y; Y10; Y10T; Y10T83/00; Y10T83/384; Y10T83/387; Y10T83/388; Y10T83/395; Y10T83/40; Y10T83/401; Y10T83/869; Y10T83/8776; Y10T83/8785; Y10T83/929; Y10T83/9411; Y10T83/9423; Y10T83/9425
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) | 1953-10-16 | 1954-04-17 | 1954-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-16 | 1958-04-17 | 1958-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-16 | 1962-04-17 | 1962-10-17 | $7700.00 | Window Closed / Lapsed |