US2497670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-frequency heating and compression apparatus
Assignee: General Electric Co
•
Filing: 1946-06-01
•
Granted: 1950-02-14
•
Expires: 1966-06-01
Abstract
No abstract record available.
Inventors
- 👤 Earl C Hanson
- 👤 Donald E Watts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:54
CPC Classifications
B; B29; B29C; B29C35/00; B29C35/02; B29C35/08; B29C43/00; B29C43/02; B29C35/0805; B29C2035/0855; B29C2791/00; B29C2791/004; B29C2791/006; B29K; B29K2021/00; Y; Y10; Y10S; Y10S264/00; Y10S264/46; Y10S425/00; Y10S425/013; Y10S425/039
Claims Analysis
Total Claims: 0
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US1930169A
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US2341617A
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US2364526A
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US2370624A
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US2398606A
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US2436999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |