US1373038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing metal substances
Assignee: Individual
•
Filing: 1919-03-31
•
Granted: 1921-03-29
•
Expires: 1939-03-31
Abstract
No abstract record available.
Inventors
- 👤 Henry C P Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:03
CPC Classifications
C; C22; C22B; C22B5/00; C22B5/02; C22B5/04; C22B5/06
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) | 1924-03-28 | 1924-09-27 | 1925-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-03-28 | 1928-09-27 | 1929-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-03-28 | 1932-09-27 | 1933-03-29 | $7700.00 | Window Closed / Lapsed |