Patent US2433339A successfully refreshed from Google Patents.
US2433339A
Expired / Lapsed
US
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Apparatus for brazing radially extending plates to the interior of a tube
Assignee: Raytheon Co
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Filing: 1944-02-10
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Granted: 1947-12-30
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Expires: 1964-02-10
Abstract
No abstract record available.
Inventors
- 👤 William C Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:46
CPC Classifications
B; B23; B23K; B23K3/00; B23K3/08; H; H01; H01J; H01J23/00; H01J23/16; H01J23/165; H01J2225/00; H01J2225/50; H01J2225/52; H01J2225/58; H01J2225/587
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) | 1950-12-29 | 1951-06-30 | 1951-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-29 | 1955-06-30 | 1955-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-29 | 1959-06-30 | 1959-12-30 | $7700.00 | Window Closed / Lapsed |