US3531579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printed circuit board with augmented conductive heat-dissipating areas
Assignee: Astro Dynamics Inc
•
Filing: 1968-10-31
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Granted: 1970-09-29
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Expires: 1988-10-31
Abstract
No abstract record available.
Inventors
- 👤 Leonhard Katz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:39
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/02; H05K1/0201; H05K1/0203; H05K1/0209; H05K2201/00; H05K2201/09; H05K2201/09209; H05K2201/0929; H05K2201/09363; H05K2201/09654; H05K2201/09781
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3061760A
Cited
US3042740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |