US3493671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal circuit board and method of forming same
Assignee: ANN L FORSAITH
•
Filing: 1968-11-15
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Granted: 1970-02-03
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Expires: 1988-11-15
Abstract
No abstract record available.
Inventors
- 👤 Norman H Horwitz
- 👤 Ann L Forsaith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:40
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/02; H05K7/06; H05K7/08; H05K1/00; H05K1/02; H05K1/0286; H05K1/0287; H05K1/0289; H05K1/0293; H05K2201/00; H05K2201/09; H05K2201/09209; H05K2201/095; H05K2201/09609; H05K2201/09654; H05K2201/09727; H05K2203/00; H05K2203/01; H05K2203/0195; H05K2203/17; H05K2203/175; H05K3/00; H05K3/02; H05K3/04; H05K3/043
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) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |