US3337334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beryllium-aluminum alloy
Assignee: Lockheed Martin Corp
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Filing: 1963-12-06
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Granted: 1967-08-22
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Expires: 1983-12-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Raymond W Fenn
- 👤 Morris A Steinberg
- 👤 Donald D Crooks
- 👤 Ervin E Underwood
- 👤 Claus G Goetzel
- 👤 Henry W Lavendel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:40
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/04; C22C1/0408; C22C25/00; Y; Y10; Y10S; Y10S75/00; Y10S75/95; Y10S75/954; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/1216; Y10T428/12181
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
BERYLLIUM-ALUMINUM ALLOYS CONSISTING ESSENTIALLY OF AT LEAST 50% BY WEIGHT OF BERYLLIUM WITH THE REMAINDER BEING PRIMARILY ALUMINUM WHICH HAVE A COMPLEXITY INDEX WITHIN THE RANGE OF FROM APPROXIMATELY 1 TO APPROXIMATELY 5.
Claim 2
Dependent Claim
33 words
BERYLLIUM-ALUMINUM ALLOYS CONSISTING ESSENTIALLY OF AT LEAST 50% BY WEIGHT OF BERYLLIUM WITH THE REMAINDER BEING PRIMARILY ALUMINUM WHICH HAVE A COMPLEXITY INDEX WITHIN THE RANGE OF FROM APPROXIMATELY 1 TO APPROXIMATELY 5.
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) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |