US2404385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring holder for cantilever elements
Assignee: AT&T Inc
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Filing: 1942-09-03
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Granted: 1946-07-23
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Expires: 1962-09-03
Abstract
No abstract record available.
Inventors
- 👤 Fritts Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:10
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/20; H01Q13/24; F; F16; F16B; F16B2200/00; F16B2200/50; F16B2200/503; F16B2200/506; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17411; Y10T279/17471; Y10T279/17487; Y10T279/17521; Y10T279/35; Y10T403/00; Y10T403/70; Y10T403/7047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-07-22 | 1950-01-21 | 1950-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-07-22 | 1954-01-21 | 1954-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-07-22 | 1958-01-21 | 1958-07-23 | $7700.00 | Window Closed / Lapsed |