US2432444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phonograph pickup device
Assignee: Lanteris Space LLC
•
Filing: 1944-06-29
•
Granted: 1947-12-09
•
Expires: 1964-06-29
Abstract
No abstract record available.
Inventors
- 👤 Roberts Bruce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:55
CPC Classifications
H; H04; H04R; H04R19/00; H04R19/06; Y; Y10; Y10S; Y10S200/00; Y10S200/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1702438A
Cited
US1957512A
Cited
US1732393A
Cited
GB310762A
Cited
US2032194A
Cited
US2147092A
Cited
US2197967A
Cited
US2397888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-08 | 1951-06-09 | 1951-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-08 | 1955-06-09 | 1955-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-08 | 1959-06-09 | 1959-12-09 | $7700.00 | Window Closed / Lapsed |