US2997524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protected printed circuits and contacts
Assignee: Individual
•
Filing: 1957-11-21
•
Granted: 1961-08-22
•
Expires: 1977-11-21
Abstract
No abstract record available.
Inventors
- 👤 Ruskin Dan
- 👤 Reder Milton
- 👤 Fahri Carol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:03
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/22; H05K3/24; H05K3/244; H01; H01H; H01H1/00; H01H1/02; H01H2001/0208; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10S428/9335; Y10S428/937; Y10T; Y10T428/00; Y10T428/12; Y10T428/12389; Y10T428/12396; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/12986
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2303497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |