Patent US2533943A successfully refreshed from Google Patents.
US2533943A
Expired / Lapsed
US
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Die head device
Assignee: National Telephone Supply Co
•
Filing: 1947-06-13
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Granted: 1950-12-12
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Expires: 1967-06-13
Abstract
No abstract record available.
Inventors
- 👤 Charles H Klein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:27
CPC Classifications
H; H01; H01R; H01R43/00; H01R43/04; H01R43/042; H01R43/0427; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1014; Y10T292/1022; Y10T292/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB190403012A
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US1236618A
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US1560296A
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US1985341A
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US2171280A
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US2182663A
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US2254613A
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US2235253A
Cited
US2294640A
Cited
US2390183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |