US2998646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of joining metal by high pressure controlled temperature diffusion welding
Assignee: Individual
•
Filing: 1958-06-18
•
Granted: 1961-09-05
•
Expires: 1978-06-18
Abstract
No abstract record available.
Inventors
- 👤 Gifford L Hitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:03
CPC Classifications
B; B23; B23K; B23K20/00; Y; Y10; Y10T; Y10T29/00; Y10T29/51
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US376750A
Cited
US797844A
Cited
US1162772A
Cited
US1220772A
Cited
US2040240A
Cited
US2102259A
Cited
US2192904A
Cited
GB609035A
Cited
US2746141A
Cited
US2691815A
Cited
US2820286A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |