Patent US2343196A successfully refreshed from Google Patents.
Patent US2536128A successfully refreshed from Google Patents.
US2536128A
Expired / Lapsed
US
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Method and means for generating and utilizing vibrational waves in plates
Assignee: Sperry Products Inc
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Filing: 1946-05-21
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Granted: 1951-01-02
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Expires: 1966-05-21
Abstract
No abstract record available.
Inventors
- 👤 Floyd A Firestone
- 👤 Jr Daniel S Ling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:06
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/22; G01N29/24; G01N2291/00; G01N2291/04; G01N2291/042; G01N2291/0421
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) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |