Patent US1458542A successfully refreshed from Google Patents.
US1458542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of dispersoids
Assignee: Individual
•
Filing: 1921-01-13
•
Granted: 1923-06-12
•
Expires: 1941-01-13
Abstract
No abstract record available.
Inventors
- 👤 Plauson Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:07
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/0004; B01J13/0008; B01J13/0013; C; C01; C01B; C01B17/00; C01B17/02; C01B17/10; Y; Y10; Y10S; Y10S516/00; Y10S516/924
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) | 1926-06-11 | 1926-12-11 | 1927-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-06-11 | 1930-12-11 | 1931-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-06-11 | 1934-12-11 | 1935-06-12 | $7700.00 | Window Closed / Lapsed |