US2573257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined radio and intercommunicating set
Assignee: Cornell Dubilier Electronics Inc
•
Filing: 1947-02-24
•
Granted: 1951-10-30
•
Expires: 1967-02-24
Abstract
No abstract record available.
Inventors
- 👤 William W Garstang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:20
CPC Classifications
H; H04; H04M; H04M9/00; H04M9/001; Y; Y10; Y10S; Y10S367/00; Y10S367/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1812624A
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US2339678A
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US2433413A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-29 | 1955-04-30 | 1955-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-29 | 1959-04-30 | 1959-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-29 | 1963-04-30 | 1963-10-30 | $7700.00 | Window Closed / Lapsed |