US2456222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article forming apparatus
Assignee: AT&T Inc
•
Filing: 1944-11-30
•
Granted: 1948-12-14
•
Expires: 1964-11-30
Abstract
No abstract record available.
Inventors
- 👤 John S Stull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:24
CPC Classifications
B; B21; B21F; B21F3/00; B21F3/02; B21F3/04; B21F35/00; H; H01; H01J; H01J19/00; H01J19/02; H01J19/04; H01J19/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US746263A
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US906418A
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US1166917A
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GB166064A
Cited
US1497965A
Cited
US1880454A
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US1973667A
Cited
US2072230A
Cited
US2155388A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-14 | 1952-06-14 | 1952-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-14 | 1956-06-14 | 1956-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-14 | 1960-06-14 | 1960-12-14 | $7700.00 | Window Closed / Lapsed |