Patent US2726002A successfully refreshed from Google Patents.
US3487541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printed circuits
Assignee: International Standard Electric Corp
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Filing: 1967-06-19
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Granted: 1970-01-06
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Expires: 1987-06-19
Abstract
No abstract record available.
Inventors
- 👤 David Boswell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:58
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/04; H01F41/12; H01F41/125; H05; H05K; H05K3/00; H05K3/40; H05K3/4092; H10; H10N; H10N35/00; H10N35/101; H10W; H10W70/00; H10W70/40; H10W70/479; H10W72/00; H10W72/071; H10W72/072; H10W72/07251; H10W72/20; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49124; Y10T29/4913; Y10T29/53; Y10T29/5313; Y10T29/53174; Y10T29/53178
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3308526A
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US3248779A
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US3307239A
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US3396459A
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US3325882A
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US3342927A
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US3390308A
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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) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |