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US2869750A
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US
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Assignee: Kaiser Aluminum and Chemical Corp
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Filing: 1955-10-04
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Granted: 1959-01-20
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Expires: 1975-10-04
Abstract
No abstract record available.
Inventors
- 👤 Dale D Doerr
- 👤 William H Grip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:58
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/52; B65D88/526; B65D88/528
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1320312A
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FR677913A
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US2070346A
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US2457841A
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GB650264A
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GB653689A
Cited
US2613836A
Cited
US2643788A
Cited
US2696929A
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US2688493A
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US2664219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |