Patent US2509181A successfully refreshed from Google Patents.
US2509181A
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Method and apparatus for electronically fusing material in a high partial vacuum
Assignee: ELECTRONIC PRODUCTS CORP
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Filing: 1948-06-22
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Granted: 1950-05-23
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Expires: 1968-06-22
Abstract
No abstract record available.
Inventors
- 👤 Zimmerman Elmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:00
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/04; B29C66/00; B29C66/001; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/43121; B29C66/80; B29C66/81; B29C66/812; B29C66/8126; B29C66/81262; B29C66/81263; B29C66/814; B29C66/8145; B29C66/81457; B29C66/816; B29C66/8161; B29C66/818; B29C66/8187; B29C66/81871; B29C66/82; B29C66/822; B29C66/8221; B29C66/83; B29C66/832; B29C66/8322; B29C66/70; B29C66/71; B29C66/8182; B29C66/81821; B29L; B29L2031/00; B29L2031/712; B29L2031/7128
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1626777A
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US2022839A
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US2403800A
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US2401991A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-22 | 1953-11-21 | 1954-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-22 | 1957-11-21 | 1958-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-22 | 1961-11-21 | 1962-05-23 | $7700.00 | Window Closed / Lapsed |