Patent US2326233A successfully refreshed from Google Patents.
US2326233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fireproofing composition
Assignee: —
•
Filing: —
•
Granted: 1943-08-10
•
Expires: 1960-08-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:33
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/80; D06M11/82; C; C09; C09K; C09K21/00; C09K21/06; C09K21/08; Y; Y10; Y10S; Y10S260/00; Y10S260/24; Y10S260/47; Y10S55/00; Y10S55/24; Y10T; Y10T442/00; Y10T442/20; Y10T442/2631
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) | 1946-08-09 | 1947-02-08 | 1947-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-08-09 | 1951-02-08 | 1951-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-08-09 | 1955-02-08 | 1955-08-10 | $7700.00 | Window Closed / Lapsed |