US2456706A
Expired / Lapsed
US
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Acoustic chamber
Assignee: Ultrasonic Corp
•
Filing: 1946-02-02
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Granted: 1948-12-21
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Expires: 1966-02-02
Abstract
No abstract record available.
Inventors
- 👤 Caperton B Horsley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:12
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/08; B01J19/10; B01J2219/00; B01J2219/19; B01J2219/194; B01J2219/1941; B01J2219/1942; Y; Y10; Y10S; Y10S116/00; Y10S116/19; Y10S516/00; Y10S516/924
Claims Analysis
Total Claims: 0
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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) | 1951-12-21 | 1952-06-21 | 1952-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-21 | 1956-06-21 | 1956-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-21 | 1960-06-21 | 1960-12-21 | $7700.00 | Window Closed / Lapsed |