US3740277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deflagrative circuit board material
Assignee: United States Department of the Navy
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Filing: 1971-02-08
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Granted: 1973-06-19
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Expires: 1991-02-08
Abstract
Abstract A SELF-DESTRUCTIVE CIRCUIT BOARD, WHICH WILL DENY KNOWLEDGE TO AN ENEMY BY DESTROYING THE ACTUAL HARDWARE ELEMENTS MOUNTED THEREON, MADE OF A COMPOSITION WHICH BURNS AT SUCH HIGH TEMPERATURE THAT ALL MATAL AND OTHER SOLID COMPONENTS ARE COMPLETELY DESTROYED.
Inventors
- 👤 C Poulin
- 👤 T Bryla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:52
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/0353; H05K1/0373; C; C06; C06B; C06B33/00; C06B33/06; H05K1/0275; H05K2201/00; H05K2201/10; H05K2201/10007; H05K2201/10151; H05K2203/00; H05K2203/11; H05K2203/1163; H05K2203/17; H05K2203/178; Y; Y10; Y10S; Y10S149/00; Y10S149/11; Y10S149/113; Y10S149/114
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |