US1978415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of uniting metals
Assignee: MOORE DROP FORGING CO Inc
•
Filing: 1931-12-24
•
Granted: 1934-10-30
•
Expires: 1951-12-24
Abstract
No abstract record available.
Inventors
- 👤 John M Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:36
CPC Classifications
C; C23; C23C; C23C4/00; C23C4/04; C23C4/06; C23C4/08; C23C12/00; C23C4/12; C23C4/14; C23C4/16; C23C4/18; Y; Y10; Y10S; Y10S29/00; Y10S29/039
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1937-10-29 | 1938-04-30 | 1938-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-10-29 | 1942-04-30 | 1942-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-10-29 | 1946-04-30 | 1946-10-30 | $7700.00 | Window Closed / Lapsed |