US1553881A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for removing rust from and cleansing steel and iron
Assignee: Individual
•
Filing: 1924-03-11
•
Granted: 1925-09-15
•
Expires: 1944-03-11
Abstract
No abstract record available.
Inventors
- 👤 Siegel Heinrich
- 👤 Podder Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:26
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/14; C23G1/19
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) | 1928-09-14 | 1929-03-16 | 1929-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-09-14 | 1933-03-16 | 1933-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-09-14 | 1937-03-16 | 1937-09-15 | $7700.00 | Window Closed / Lapsed |