US2534643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for brazing beryllium
Assignee: Machlett Laboratories Inc
•
Filing: 1948-12-11
•
Granted: 1950-12-19
•
Expires: 1968-12-11
Abstract
No abstract record available.
Inventors
- 👤 Warner John Glenn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:26
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/30; B23K35/302
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US496019A
Cited
US1893380A
Cited
US1966260A
Cited
US2084268A
Cited
US2151989A
Cited
US2214108A
Cited
US2255550A
Cited
US2196303A
Cited
US2264868A
Cited
US2279854A
Cited
US2394984A
Cited
US2410665A
Cited
US2435789A
Cited
US2406310A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |