US2523341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibrating device
Assignee: International Standard Electric Corp
•
Filing: 1944-11-11
•
Granted: 1950-09-26
•
Expires: 1964-11-11
Abstract
No abstract record available.
Inventors
- 👤 Terry Victor John
- 👤 Foulkes Edward Archibald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:51
CPC Classifications
H; H04; H04R; H04R19/00; H04R19/04; G; G01; G01H; G01H11/00; G01H11/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1746171A
Cited
US2037255A
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US2041710A
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US2233751A
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US2305267A
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US2257187A
Cited
US2288838A
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US2309560A
Cited
US2361990A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-25 | 1954-03-27 | 1954-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-25 | 1958-03-27 | 1958-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-25 | 1962-03-27 | 1962-09-26 | $7700.00 | Window Closed / Lapsed |