US2468538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultra high frequency vibrator
Assignee: Submarine Signal Co
•
Filing: 1946-01-10
•
Granted: 1949-04-26
•
Expires: 1966-01-10
Abstract
No abstract record available.
Inventors
- 👤 Benioff Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:20
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/02; B06B1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1652525A
Cited
US1734975A
Cited
US1992938A
Cited
US2138051A
Cited
US2163649A
Cited
US2219348A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-25 | 1952-10-25 | 1953-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-25 | 1956-10-25 | 1957-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-25 | 1960-10-25 | 1961-04-26 | $7700.00 | Window Closed / Lapsed |