Patent US2898521A successfully refreshed from Google Patents.
US2898521A
Expired / Lapsed
US
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Electric circuit component
Assignee: Individual
•
Filing: 1956-09-28
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Granted: 1959-08-04
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Expires: 1976-09-28
Abstract
No abstract record available.
Inventors
- 👤 Cyrus J Creveling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:43
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/18; H05K1/182; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/3405; H05K1/02; H05K1/11; H05K1/117; H05K2201/00; H05K2201/09; H05K2201/09145; H05K2201/09181; H05K2201/10; H05K2201/10431; H05K2201/10439; H05K2201/10446; H05K2201/10613; H05K2201/10621; H05K2201/10651; H05K3/3465; H05K3/3468; H05K3/40; H05K3/403
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2244009A
Cited
US2466192A
Cited
US2777193A
Cited
US2774014A
Cited
US2693584A
Cited
US2850681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |