US1397828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crusher and pulverizer
Assignee: Williams Patent Crusher and Pulverizer Co Inc
•
Filing: 1919-08-07
•
Granted: 1921-11-22
•
Expires: 1939-08-07
Abstract
No abstract record available.
Inventors
- 👤 Milton F Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:41
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/26; B02C13/28
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) | 1924-11-21 | 1925-05-23 | 1925-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-11-21 | 1929-05-23 | 1929-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-11-21 | 1933-05-23 | 1933-11-22 | $7700.00 | Window Closed / Lapsed |