Patent US2601980A successfully refreshed from Google Patents.
US2601980A
Expired / Lapsed
US
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Annealing tray
Assignee: Individual
•
Filing: 1951-01-30
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Granted: 1952-07-01
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Expires: 1971-01-30
Abstract
No abstract record available.
Inventors
- 👤 Paul S Menough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:30
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/0006; C21D9/0025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2145708A
Cited
US2297054A
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US2287740A
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US2303882A
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US2395182A
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US2417083A
Cited
US2462960A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-01 | 1955-12-31 | 1956-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-01 | 1959-12-31 | 1960-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-01 | 1963-12-31 | 1964-07-01 | $7700.00 | Window Closed / Lapsed |