Patent US2390378A successfully refreshed from Google Patents.
US2390378A
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US
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Method of making silicone resins
Assignee: General Electric Co
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Filing: 1942-08-21
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Granted: 1945-12-04
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Expires: 1962-08-21
Abstract
No abstract record available.
Inventors
- 👤 Marsden James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:18
CPC Classifications
C; C22; C22B; C22B19/00; C22B19/04; C01; C01G; C01G9/00; C01G9/02; C01G9/03; C08; C08G; C08G77/00; C09; C09C; C09C1/00; C09C1/04; C22B19/32
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) | 1948-12-03 | 1949-06-04 | 1949-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-12-03 | 1953-06-04 | 1953-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-12-03 | 1957-06-04 | 1957-12-04 | $7700.00 | Window Closed / Lapsed |