US2728076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement at radio beacons
Assignee: Svenska AB Gasaccumulator
•
Filing: 1951-04-04
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Granted: 1955-12-20
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Expires: 1971-04-04
Abstract
No abstract record available.
Inventors
- 👤 Granqvist Carl-Erik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:35
CPC Classifications
H; H01; H01Q; H01Q25/00; G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2045904A
Cited
GB467013A
Cited
US2279031A
Cited
US2308019A
Cited
US2424079A
Cited
US2528543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-19 | 1959-06-20 | 1959-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-19 | 1963-06-20 | 1963-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-19 | 1967-06-20 | 1967-12-20 | $7700.00 | Window Closed / Lapsed |