US2534842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual synchrometric system
Assignee: PANORAMIC RADIO Corp
•
Filing: 1947-10-10
•
Granted: 1950-12-19
•
Expires: 1967-10-10
Abstract
No abstract record available.
Inventors
- 👤 Wallace Marcel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:19
CPC Classifications
G; G01; G01S; G01S5/00; G01S5/0009
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2252083A
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US2253958A
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US2283103A
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US2265149A
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GB560928A
Cited
US2321971A
Cited
GB577795A
Cited
US2406858A
Cited
US2438903A
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US2468703A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |