Patent US1815932A successfully refreshed from Google Patents.
Patent US2767336A successfully refreshed from Google Patents.
US2767336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cement for bonding elements of a delay line with low transmission losses using mixtures of inorganic salts
Assignee: Individual
•
Filing: 1951-05-22
•
Granted: 1956-10-16
•
Expires: 1971-05-22
Abstract
No abstract record available.
Inventors
- 👤 David L Arenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:34
CPC Classifications
H; H03; H03H; H03H9/00; H03H9/02; H03H9/125; Y; Y10; Y10T; Y10T29/00; Y10T29/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
ULTRASONIC ENERGY TRANSMITTING APPARATUS COMPRISING IN COMBINATION, A CRYSTAL TRANSDUCER, A SOLID ACOUSTICAL DELAY LINE, AND A LAYER OF BONDING AGENT DISPOSED BETWEEN AND SECURING SAID TRANSDUCER TO SAID DELAY LINE, SAID BONDING AGENT PROVIDING AN ACOUSTICAL MATCH BETWEEN SAID TRANSDUCER AND SAID DELAY LINE, SAID BONDING AGENT CONSISTING OF A MIXTURE OF INORGANIC SALTS SELECTED FROM THE NITRATES OF THE GROUP CONSISTING OF POTASSIUM, SODIUM AND SILVER.
Claim 2
Dependent Claim
68 words
ULTRASONIC ENERGY TRANSMITTING APPARATUS COMPRISING IN COMBINATION, A CRYSTAL TRANSDUCER, A SOLID ACOUSTICAL DELAY LINE, AND A LAYER OF BONDING AGENT DISPOSED BETWEEN AND SECURING SAID TRANSDUCER TO SAID DELAY LINE, SAID BONDING AGENT PROVIDING AN ACOUSTICAL MATCH BETWEEN SAID TRANSDUCER AND SAID DELAY LINE, SAID BONDING AGENT CONSISTING OF A MIXTURE OF INORGANIC SALTS SELECTED FROM THE NITRATES OF THE GROUP CONSISTING OF POTASSIUM, SODIUM AND SILVER.
References Cited (Backward Citations)
US2227268A
Cited
GB585663A
Cited
US2589403A
Cited
US2511224A
Cited
US2512130A
Cited
US2458581A
Cited
US2672590A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |