US1394553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow casting
Assignee: Individual
•
Filing: 1921-04-23
•
Granted: 1921-10-25
•
Expires: 1941-04-23
Abstract
No abstract record available.
Inventors
- 👤 Hoffer Herman
- 👤 Hoffer Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:49
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/68; B29C70/70; B29C33/00; B29C33/12; B29C33/123
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) | 1924-10-24 | 1925-04-25 | 1925-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-10-24 | 1929-04-25 | 1929-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-10-24 | 1933-04-25 | 1933-10-25 | $7700.00 | Window Closed / Lapsed |