Patent US2678205A successfully refreshed from Google Patents.
US2678205A
Expired / Lapsed
US
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System for heat treating shaped bodies
Assignee: Kaiser Aluminum and Chemical Corp
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Filing: 1950-06-08
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Granted: 1954-05-11
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Expires: 1970-06-08
Abstract
No abstract record available.
Inventors
- 👤 James D Buhler
- 👤 Clinton B Folkrod
- 👤 Russell O Gunderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:25
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/52; C04B35/528; C04B35/532
Claims Analysis
Total Claims: 0
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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) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |