Patent US2946105A successfully refreshed from Google Patents.
US2946105A
Expired / Lapsed
US
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Casting metals
Assignee: Imperial Chemical Industries Ltd
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Filing: 1959-01-30
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Granted: 1960-07-26
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Expires: 1979-01-30
Abstract
No abstract record available.
Inventors
- 👤 Westwood Albert Ronald Clifton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:51
CPC Classifications
C; C22; C22B; C22B9/00; C22B9/04; C22B34/00; C22B34/10; C22B34/12; C22B34/1295
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB266305A
Cited
US2756138A
Cited
US2787536A
Cited
US2686864A
Cited
US2805148A
Cited
US2825641A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |