US2292444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tile
Assignee: Celotex Corp
•
Filing: 1940-08-03
•
Granted: 1942-08-11
•
Expires: 1960-08-03
Abstract
No abstract record available.
Inventors
- 👤 Haydon Osborne
- 👤 Thompson P Finefrock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:53
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/14; E04F13/141; E04C; E04C2/00; E04C2/02; E04C2/04; E04C2/043
Claims Analysis
Total Claims: 0
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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) | 1945-08-10 | 1946-02-09 | 1946-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-08-10 | 1950-02-09 | 1950-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-08-10 | 1954-02-09 | 1954-08-11 | $7700.00 | Window Closed / Lapsed |