US 5003515
SUBMARINE EMERGENCY COMMUNICATION TRANSMITTER
Assignee
Filed
May 28, 1964
Granted
Mar 26, 1991
Location
Abstract
An underwater acoustic transmitter adapted to be released from a submergedubmarine to float towards the surface of the water and explode a plurality of signalling charges at a predetermined depth in a predetermined time sequence.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Mar 3, 1982
Rescinded
Jul 11, 1984
Duration
2 years, 4 months
Record Details
- Patent number
- US 5003515
- Application
- 04371142
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
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Back to patent indexSource: USPTO 35 USC §181 secrecy order records