US3462248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallurgy
Assignee: Kaiser Aluminum and Chemical Corp
•
Filing: 1960-01-18
•
Granted: 1969-08-19
•
Expires: 1980-01-18
Abstract
No abstract record available.
Inventors
- 👤 Sidney G Roberts
- 👤 Maurice C Fetzer
- 👤 James B Hess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:31
CPC Classifications
C; C22; C22C; C22C21/00; Y; Y10; Y10S; Y10S75/00; Y10S75/95
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1830142A
Cited
GB450424A
Cited
US2966731A
Cited
US2966736A
Cited
US2966733A
Cited
US2966732A
Cited
US2966735A
Cited
US2966734A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-18 | 1973-02-17 | 1973-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-18 | 1977-02-17 | 1977-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-18 | 1981-02-17 | 1981-08-19 | $7700.00 | Window Closed / Lapsed |