US1633258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refractory metal alloy of high density and high melting point and method of making the same
Assignee: Individual
•
Filing: 1925-10-08
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Granted: 1927-06-21
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Expires: 1945-10-08
Abstract
No abstract record available.
Inventors
- 👤 Clemens A Laise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:51
CPC Classifications
C; C22; C22C; C22C27/00; C22C27/04; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T407/00; Y10T407/27; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/1216; Y10T428/12167; Y10T428/12174
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1930-06-20 | 1930-12-20 | 1931-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-06-20 | 1934-12-20 | 1935-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-06-20 | 1938-12-20 | 1939-06-21 | $7700.00 | Window Closed / Lapsed |