Patent CH337426A successfully refreshed from Google Patents.
Patent US5066884A successfully refreshed from Google Patents.
Patent US2339180A successfully refreshed from Google Patents.
Patent US3198929A successfully refreshed from Google Patents.
Patent US2004340A successfully refreshed from Google Patents.
US2004340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Casting method and apparatus
Assignee: Individual
•
Filing: 1933-08-03
•
Granted: 1935-06-11
•
Expires: 1953-08-03
Abstract
No abstract record available.
Inventors
- 👤 Luther M Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:37
CPC Classifications
B; B22; B22D; B22D25/00; B22D25/02; B22D25/04
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) | 1938-06-10 | 1938-12-10 | 1939-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-06-10 | 1942-12-10 | 1943-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-06-10 | 1946-12-10 | 1947-06-11 | $7700.00 | Window Closed / Lapsed |