US2941575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for dielectric fabrication
Assignee: Individual
•
Filing: 1955-09-14
•
Granted: 1960-06-21
•
Expires: 1975-09-14
Abstract
No abstract record available.
Inventors
- 👤 Paul R Malmberg
- 👤 Edward R Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:52
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/04; B29C65/22; B29C65/221; B29C65/222; B29C65/226; B29C65/227; B29C65/24; B29C65/26; B29C65/72; B29C65/74; B29C65/743; B29C65/7433; B29C65/7441; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/81; B29C66/812; B29C66/8126; B29C66/81261; B29C66/814; B29C66/8141; B29C66/81411; B29C66/81421; B29C66/81422; B29C66/818; B29C66/8187; B29C66/81871; B29C35/00; B29C35/16; B29C2035/1616; B29C2035/1625; B29C2035/1633; B29C2035/1658; B29C66/40; B29C66/41; B29C66/43; B29C66/71; B29C66/81262; B29C66/81263; B29C66/8145; B29C66/81457; B29C66/83; B29C66/832; B29C66/8322; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1313
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2525355A
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US2388824A
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GB632690A
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GB639614A
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US2638963A
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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) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |