US2415025A
Expired / Lapsed
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Method and apparatus for treating matter in a high-frequency electric field
Assignee: Bridgestone Firestone Inc
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Filing: 1943-04-22
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Granted: 1947-01-28
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Expires: 1963-04-22
Abstract
No abstract record available.
Inventors
- 👤 Grell Herm H Giodvad
- 👤 Harry W Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:55
CPC Classifications
B; B29; B29C; B29C35/00; B29C35/02; B29C35/12; B29C35/14; B29K; B29K2021/00; Y; Y10; Y10S; Y10S65/00; Y10S65/04; Y10T; Y10T117/00; Y10T117/10; Y10T117/1016; Y10T117/1024; Y10T117/1076; Y10T117/108; Y10T117/1088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-01-27 | 1950-07-29 | 1951-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-01-27 | 1954-07-29 | 1955-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-01-27 | 1958-07-29 | 1959-01-28 | $7700.00 | Window Closed / Lapsed |