US3174850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grain refined beryllium alloy
Assignee: Stauffer Chemical Co
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Filing: 1960-09-29
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Granted: 1965-03-23
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Expires: 1980-09-29
Abstract
No abstract record available.
Inventors
- 👤 Jack K Y Hum
- 👤 Alfred L Donlevy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:35
CPC Classifications
C; C22; C22B; C22B35/00; C22C; C22C1/00; C22C1/04; C22C1/0408; C22C25/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A FABRICABLE FINE GRAINED BERYLLIUM ALLOY CONSISTING ESSENTAILLY OF BERYLLIUM WITH FROM 0.01 TO 0.3 PERCENT BY WEIGHT BORON UNIFORMLY INCORPORATED THEREIN.
Claim 2
Dependent Claim
22 words
A FABRICABLE FINE GRAINED BERYLLIUM ALLOY CONSISTING ESSENTAILLY OF BERYLLIUM WITH FROM 0.01 TO 0.3 PERCENT BY WEIGHT BORON UNIFORMLY INCORPORATED THEREIN.
References Cited (Backward Citations)
FR686855A
Cited
US2251089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |