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US2632314A
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Fractional fusion apparatus
Assignee: Phillips Petroleum Co
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Filing: 1949-09-22
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Granted: 1953-03-24
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Expires: 1969-09-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Frank P Vance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:25
CPC Classifications
C; C11; C11B; C11B7/00; C11B7/0075; B; B01; B01J; B01J6/00; B01J6/005; C07; C07C; C07C7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |