US3134977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wave source position detecting system
Assignee: NEC Corp
•
Filing: 1960-10-06
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Granted: 1964-05-26
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Expires: 1980-10-06
Abstract
No abstract record available.
Inventors
- 👤 Takagi Masateru
- 👤 Kumano Masao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:17
CPC Classifications
G; G01; G01S; G01S5/00; G01S5/02; G01S5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A SIGNAL RECEIVING SYSTEM FOR DETERMINING THE LOCATION OF A SOURCE OF ELECTROMAGNETIC WAVE ENERGY COMPRISING MEANS AT A PLURALITY OF SPACED POSITIONS FOR RECEIVING SIGNALS FROM SAID ENERGY SOURCE, EACH OF SAID RECEIVING MEANS HAVING A MAIN LOBE PATTERN COVERING A PREDETERMINED AREA SHARED WITH THE LOBE PATTERNS OF THE OTHER RECEIVING MEANS,
Claim 2
Dependent Claim
54 words
A SIGNAL RECEIVING SYSTEM FOR DETERMINING THE LOCATION OF A SOURCE OF ELECTROMAGNETIC WAVE ENERGY COMPRISING MEANS AT A PLURALITY OF SPACED POSITIONS FOR RECEIVING SIGNALS FROM SAID ENERGY SOURCE, EACH OF SAID RECEIVING MEANS HAVING A MAIN LOBE PATTERN COVERING A PREDETERMINED AREA SHARED WITH THE LOBE PATTERNS OF THE OTHER RECEIVING MEANS,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |