Patent US3508908A successfully refreshed from Google Patents.
US3508908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of aluminum and aluminum alloys
Assignee: Commonwealth Scientific and Industrial Research Organisation
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Filing: 1966-09-06
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Granted: 1970-04-28
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Expires: 1986-09-06
Abstract
No abstract record available.
Inventors
- 👤 George Lang Herwig
- 👤 Ernest Foley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:01
CPC Classifications
C; C22; C22B; C22B5/00; C22B5/02; C22B5/04; C22B21/00; C22B21/0038; C22B21/0046; C25; C25C; C25C3/00; C25C3/06
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) | 1973-04-27 | 1973-10-27 | 1974-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-27 | 1977-10-27 | 1978-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-27 | 1981-10-27 | 1982-04-28 | $7700.00 | Window Closed / Lapsed |