US3528048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of constructing printed circuits for subsequent completion or deletion
Assignee: International Business Machines Corp
•
Filing: 1967-07-06
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Granted: 1970-09-08
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Expires: 1987-07-06
Abstract
No abstract record available.
Inventors
- 👤 Joseph P Kirk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:16
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/22; H05K3/225; H05K1/00; H05K1/02; H05K1/0286; H05K1/0293; H05K2201/00; H05K2201/03; H05K2201/0302; H05K2201/0305; H05K2201/10; H05K2201/10007; H05K2201/10181; H05K2203/00; H05K2203/02; H05K2203/0278; H05K2203/03; H05K2203/0369; H05K2203/04; H05K2203/043; H05K2203/11; H05K2203/1115; H05K2203/17; H05K2203/173; H05K2203/175; H05K3/30; H05K3/32; H05K3/34; H05K3/3465; H05K3/40; H05K3/4038; H05K3/46; H05K3/4685; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/49155
Claims Analysis
Total Claims: 0
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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) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |