US1367015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of controlling the grain growth in magnetic alloy sheets
Assignee: Individual
•
Filing: 1919-06-06
•
Granted: 1921-02-01
•
Expires: 1939-06-06
Abstract
No abstract record available.
Inventors
- 👤 Vere B Browne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:55
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/78; Y; Y10; Y10T; Y10T29/00; Y10T29/30; Y10T29/301
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) | 1924-02-01 | 1924-08-02 | 1925-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-02-01 | 1928-08-02 | 1929-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-02-01 | 1932-08-02 | 1933-02-01 | $7700.00 | Window Closed / Lapsed |