US1559203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of and apparatus for purifying fusions
Assignee: General Electric Co
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Filing: 1925-06-01
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Granted: 1925-10-27
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Expires: 1945-06-01
Abstract
No abstract record available.
Inventors
- 👤 Thomson Elihu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:23
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/02; C03B5/033; C03B5/0334; C03B17/00; C03B17/04; C03B19/00; C03B19/09; C03B19/095; C03B5/021; C03B5/16; C03B5/225; C03B5/2255
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) | 1928-10-26 | 1929-04-27 | 1929-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-10-26 | 1933-04-27 | 1933-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-10-26 | 1937-04-27 | 1937-10-27 | $7700.00 | Window Closed / Lapsed |