US3439109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin film magnetic stores using printed electric circuits
Assignee: EMI Ltd
•
Filing: 1962-09-28
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Granted: 1969-04-15
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Expires: 1982-09-28
Abstract
No abstract record available.
Inventors
- 👤 David Edward Birt
- 👤 Anthony Thomas Gibson
- 👤 Peter John Holden
- 👤 Reginald Sidney Webley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:33
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/36; H05K3/361; H05K3/363; H05K2201/00; H05K2201/03; H05K2201/0332; H05K2201/0388; H05K2201/0394; H05K2203/00; H05K2203/01; H05K2203/0195
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
226 words
A PRINTED ELECTRIC CIRCUIT COMPRISING A FIRST SET OF CONDUCTORS ADHERING TO THE SURFACE OF A FIRST SUPPORT OF INSULATING MATERIAL, SAID CONDUCTORS HAVING STRAIGHT AND PARRALLEL PORTIONS, A SECOND SET OF CONDUCTORS ADHERING TO THE SURFACE OF A SECOND SUPPORT OF INSULATING MATERIAL, SAID LATTER CONDUCTORS HAVING STRAIGHT AND PARALLEL PORTIONS, A THIRD SET OF CONDUCTORS ADHERING TO THE SURFACE OF A THIRD SUPPORT OF INSULATING MATERIAL, SAID LAST MENTIONED CONDUCTORS HAVING STRAIGHT AND PARALLEL PORTIONS, SAID STRAIGHT AND PARALLEL PORTIONS OF SAID THIRD SET BEING ARRANGED TO REGISTER RESPECTIVELY WITH THE STRAIGHT AND PARALLEL PORTIONS OF AT LEAST SELECTED CONDUCTORS OF THE FIRST SET AND AT LEAST SELECTED CONDUCTORS OF THE SECOND SET, AT LEAST PART OF CERTAIN OF SAID STRAIGHT AND PARALLEL CONDUCTOR PORTIONS BRIDGING A COMMON GAP BETWEEN PARTS OF THE RESPECTIVE SUPPORTS SO THAT THEY ARE NOT COVERED BY INSULATING MATERIAL WHEN IN CONTACT WITH THE RESPECTIVE CONDUCTOR ON ANOTHER SUPPORT, THE CONDUCTORS OF THE THIRD SET BEING APPLIED TO CONDUCTORS OF THE FIRST AND SECOND SETS, SO THAT THE STRAIGHT AND PARALLEL PORTIONS OF CONDUCTORS OF THE THIRD SET REGISTER RESPECTIVELY WITH THE STRAIGHT AND PARALLEL PORTIONS OF CONDUCTORS OF THE FIRST AND SECOND SETS WITHOUT INSULATING MATERIAL BETWEEN THE REGISTERING PORTIONS, THE REGISTERING CONDUCTOR PORTIONS BEING JOINED AT THE GAP TO ESTABLISH ELECTRICAL CONNECTIONS BETWEEN CONDUCTORS OF THE SETS.
Claim 2
Dependent Claim
226 words
A PRINTED ELECTRIC CIRCUIT COMPRISING A FIRST SET OF CONDUCTORS ADHERING TO THE SURFACE OF A FIRST SUPPORT OF INSULATING MATERIAL, SAID CONDUCTORS HAVING STRAIGHT AND PARRALLEL PORTIONS, A SECOND SET OF CONDUCTORS ADHERING TO THE SURFACE OF A SECOND SUPPORT OF INSULATING MATERIAL, SAID LATTER CONDUCTORS HAVING STRAIGHT AND PARALLEL PORTIONS, A THIRD SET OF CONDUCTORS ADHERING TO THE SURFACE OF A THIRD SUPPORT OF INSULATING MATERIAL, SAID LAST MENTIONED CONDUCTORS HAVING STRAIGHT AND PARALLEL PORTIONS, SAID STRAIGHT AND PARALLEL PORTIONS OF SAID THIRD SET BEING ARRANGED TO REGISTER RESPECTIVELY WITH THE STRAIGHT AND PARALLEL PORTIONS OF AT LEAST SELECTED CONDUCTORS OF THE FIRST SET AND AT LEAST SELECTED CONDUCTORS OF THE SECOND SET, AT LEAST PART OF CERTAIN OF SAID STRAIGHT AND PARALLEL CONDUCTOR PORTIONS BRIDGING A COMMON GAP BETWEEN PARTS OF THE RESPECTIVE SUPPORTS SO THAT THEY ARE NOT COVERED BY INSULATING MATERIAL WHEN IN CONTACT WITH THE RESPECTIVE CONDUCTOR ON ANOTHER SUPPORT, THE CONDUCTORS OF THE THIRD SET BEING APPLIED TO CONDUCTORS OF THE FIRST AND SECOND SETS, SO THAT THE STRAIGHT AND PARALLEL PORTIONS OF CONDUCTORS OF THE THIRD SET REGISTER RESPECTIVELY WITH THE STRAIGHT AND PARALLEL PORTIONS OF CONDUCTORS OF THE FIRST AND SECOND SETS WITHOUT INSULATING MATERIAL BETWEEN THE REGISTERING PORTIONS, THE REGISTERING CONDUCTOR PORTIONS BEING JOINED AT THE GAP TO ESTABLISH ELECTRICAL CONNECTIONS BETWEEN CONDUCTORS OF THE SETS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |