US1483929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal machine
Assignee: Individual
•
Filing: 1923-06-09
•
Granted: 1924-02-19
•
Expires: 1943-06-09
Abstract
No abstract record available.
Inventors
- 👤 William C Coleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:32
CPC Classifications
C; C22; C22B; C22B11/00; C22B11/10; Y; Y10; Y10S; Y10S494/00; Y10S494/902
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) | 1927-02-18 | 1927-08-20 | 1928-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-02-18 | 1931-08-20 | 1932-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-02-18 | 1935-08-20 | 1936-02-19 | $7700.00 | Window Closed / Lapsed |