US3303500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Navigation and position finding system, operating on the transit time principle, forproducing parallel positional planes
Assignee: Telefunken Patentverwertungs GmbH
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Filing: 1963-03-22
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Granted: 1967-02-07
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Expires: 1983-03-22
Abstract
No abstract record available.
Inventors
- 👤 Prichodjko Alexander
- 👤 Simianer Albert
- 👤 Hipp Hartmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:24
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02; G01S1/08; G01S1/20; G01S1/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
A SYSTEM OF THE CHARACTER DESCRIBED, COMPRISING, IN COMBINATION: (A) TWO TRANSMITTERS LOCATED AT TWO SPACED-APART KNOWN TRANSMITTER POINTS, RESPECTIVELY, FOR TRANSMITTING INFORMATIONAL TIME MARKERS AT INSTANTS T1 AND T2, RESPECTIVELY, WHICH INSTANTS ARE IDENTICAL WITH AN INSTANT T0; AND (B) RECEIVING MEANS FOR RECEIVING SAID INFORMATIONAL TIME MARKERS AND LOCATED AT A RECEIVER POINT SPACED FROM SAID TRANSMITTER POINTS, SAID RECEIVING MEANS INCLUDING (1) MEANS FOR DETERMINING THE TIME DIFFERENCE $T12 BETWEEN THE INSTANTS T1'' AND T2'' AT WHICH THE INFORMATIONAL TIME MARKERS THAT WERE TRANSMITTED AT INSTANTS T1 AND T2, RESPECTIVELY, ARE RECEIVED, (2) MEANS FOR DETERMINING THE TIME DIFFERENCE $TM BETWEEN THE INSTANT T0 AND AN INSTANT T12'' WHICH IS INTERMEDIATE SAID INSTANTS T1'' AND T2'' AT WHICH SAID INFORMATIONAL TIME MARKERS ARE RECEIVED, AND (3) MEANS FOR FORMING THE PRODUCT $T12''$TM, THEREBY TO DEFINE A PARTICULAR POSITIONAL PLANE WHICH CONTAINS SAID RECEIVER POINT AND WHICH IS AT RIGHT ANGLES TO A STRAIGHT LINE DRAWN THROUGH SAID TRANSMITTER POINTS AND HENCE A PLANE CONTAINING SAID RECEIVER POINT, THE POSITION OF WHICH PLANE IS FIXED WITH RESPECT TO SAID KNOWN TRANSMITTER POINTS.
Claim 2
Independent Claim
184 words
A SYSTEM OF THE CHARACTER DESCRIBED, COMPRISING, IN COMBINATION: (A) TWO TRANSMITTERS LOCATED AT TWO SPACED-APART KNOWN TRANSMITTER POINTS, RESPECTIVELY, FOR TRANSMITTING INFORMATIONAL TIME MARKERS AT INSTANTS T1 AND T2, RESPECTIVELY, WHICH INSTANTS ARE IDENTICAL WITH AN INSTANT T0; AND (B) RECEIVING MEANS FOR RECEIVING SAID INFORMATIONAL TIME MARKERS AND LOCATED AT A RECEIVER POINT SPACED FROM SAID TRANSMITTER POINTS, SAID RECEIVING MEANS INCLUDING (1) MEANS FOR DETERMINING THE TIME DIFFERENCE $T12 BETWEEN THE INSTANTS T1'' AND T2'' AT WHICH THE INFORMATIONAL TIME MARKERS THAT WERE TRANSMITTED AT INSTANTS T1 AND T2, RESPECTIVELY, ARE RECEIVED, (2) MEANS FOR DETERMINING THE TIME DIFFERENCE $TM BETWEEN THE INSTANT T0 AND AN INSTANT T12'' WHICH IS INTERMEDIATE SAID INSTANTS T1'' AND T2'' AT WHICH SAID INFORMATIONAL TIME MARKERS ARE RECEIVED, AND (3) MEANS FOR FORMING THE PRODUCT $T12''$TM, THEREBY TO DEFINE A PARTICULAR POSITIONAL PLANE WHICH CONTAINS SAID RECEIVER POINT AND WHICH IS AT RIGHT ANGLES TO A STRAIGHT LINE DRAWN THROUGH SAID TRANSMITTER POINTS AND HENCE A PLANE CONTAINING SAID RECEIVER POINT, THE POSITION OF WHICH PLANE IS FIXED WITH RESPECT TO SAID KNOWN TRANSMITTER POINTS.
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |