US2118763A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burnishing of fiberboards
Assignee: Masonite Corp
•
Filing: 1936-12-24
•
Granted: 1938-05-24
•
Expires: 1956-12-24
Abstract
No abstract record available.
Inventors
- 👤 William H Mason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:26
CPC Classifications
D; D21; D21J; D21J1/00; Y; Y10; Y10T; Y10T29/00; Y10T29/47; Y10T29/471; Y10T29/473; Y10T29/474
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) | 1941-05-23 | 1941-11-22 | 1942-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-05-23 | 1945-11-22 | 1946-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-05-23 | 1949-11-22 | 1950-05-24 | $7700.00 | Window Closed / Lapsed |