Patent US2521891A successfully refreshed from Google Patents.
Patent US3371249A successfully refreshed from Google Patents.
US3371249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminar circuit assmebly
Assignee: Unisys Corp
•
Filing: 1964-09-24
•
Granted: 1968-02-27
•
Expires: 1984-09-24
Abstract
No abstract record available.
Inventors
- 👤 Le Roy A Prohofsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:04
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/3447; H01; H01R; H01R12/00; H01R12/50; H01R12/51; H01R12/52; H01R12/523; H05K3/36; H05K3/368; H05K2201/00; H05K2201/03; H05K2201/0332; H05K2201/0364; H05K2201/0373; H05K2201/09; H05K2201/09209; H05K2201/095; H05K2201/09536; H05K2201/096; H05K2201/10; H05K2201/10227; H05K2201/10287; H05K2201/10295; H05K2201/10303; H05K3/3465; H05K3/3468; H05K3/40; H05K3/4038; H05K3/4046; H05K3/46; H05K3/4611
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A MULTILAYER CIRCUIT ASSEMBLY COMPRISING: A STACKED PLURALITY OF CIRCUIT LAYERS, EACH LAYER HAVING AN ELECTRICALLY INSULATING, SOLDER REPELLENT BASE, AND EACH OF THE LAYERS HAVING A PLURALITY OF APERTURES COORDINATELY ARRANGED THEREIN, THE APERTURES OF ONE OF THE LAYERS BEING ALIGNED WITH THE APERTURES OF ANY OTHER OF THE LAYERS; A PLURALITY OF CONDUCTIVE STRIPS DISPOSED ON ONLY ONE FACE OF THE BASE, THE STRIPS TERMINATING AT PREDETERMINED APERTURES; A SOLDERABLE COATING COVERING A PORTION OF THE WALL OF EACH APERTURE, THAT END OF THE APERTURE WALL OPENING ON
Claim 2
Dependent Claim
90 words
A MULTILAYER CIRCUIT ASSEMBLY COMPRISING: A STACKED PLURALITY OF CIRCUIT LAYERS, EACH LAYER HAVING AN ELECTRICALLY INSULATING, SOLDER REPELLENT BASE, AND EACH OF THE LAYERS HAVING A PLURALITY OF APERTURES COORDINATELY ARRANGED THEREIN, THE APERTURES OF ONE OF THE LAYERS BEING ALIGNED WITH THE APERTURES OF ANY OTHER OF THE LAYERS; A PLURALITY OF CONDUCTIVE STRIPS DISPOSED ON ONLY ONE FACE OF THE BASE, THE STRIPS TERMINATING AT PREDETERMINED APERTURES; A SOLDERABLE COATING COVERING A PORTION OF THE WALL OF EACH APERTURE, THAT END OF THE APERTURE WALL OPENING ON
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) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |