US2991550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal foil coated with dielectric material and method of forming
Assignee: AMF Inc
•
Filing: 1956-05-25
•
Granted: 1961-07-11
•
Expires: 1976-05-25
Abstract
No abstract record available.
Inventors
- 👤 Charles S Block
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:53
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/02; H05K3/022; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; H01; H01B; H01B3/00; H01B3/002; H01B3/004; Y; Y10; Y10S; Y10S156/00; Y10S156/918; Y10S156/919; Y10S156/922; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1084; Y10T156/1087; Y10T156/11; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071; Y10T29/4981; Y10T29/49812; Y10T29/49826; Y10T29/49888; Y10T29/4998; Y10T29/49982; Y10T29/49986; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24446
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2520173A
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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) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |