US3263210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wide band hydrophone
Assignee: Individual
•
Filing: 1964-06-24
•
Granted: 1966-07-26
•
Expires: 1984-06-24
Abstract
No abstract record available.
Inventors
- 👤 Schloss Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:22
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/06; B06B1/0644; B06B1/0655
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
AN OMNIDIRECTIONAL HYDROPHONE COMPRISING: A FIRST CYLINDRICAL PIEZOELECTRIC CRYSTAL; AND A TANGENTIALLY POLARIZED CYLINDRICAL PIEZOELECTRIC CRYSTAL, SAID FIRST CYLINDRICAL PIEZOELECTRIC CRYSTAL BEING CONCENTRICALLY MOUNTED WITHIN SAID TANGENTIALLY POLARIZED CYLINDRICAL PIEZOELECTRIC CRYSTAL.
Claim 2
Dependent Claim
31 words
AN OMNIDIRECTIONAL HYDROPHONE COMPRISING: A FIRST CYLINDRICAL PIEZOELECTRIC CRYSTAL; AND A TANGENTIALLY POLARIZED CYLINDRICAL PIEZOELECTRIC CRYSTAL, SAID FIRST CYLINDRICAL PIEZOELECTRIC CRYSTAL BEING CONCENTRICALLY MOUNTED WITHIN SAID TANGENTIALLY POLARIZED CYLINDRICAL PIEZOELECTRIC CRYSTAL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |