US2247183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clay products saw
Assignee: GEORGE E BIRCH
•
Filing: 1940-05-16
•
Granted: 1941-06-24
•
Expires: 1960-05-16
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Bour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:00
CPC Classifications
B; B28; B28D; B28D1/00; B28D1/02; B28D1/04; B28D1/042; Y; Y10; Y10T; Y10T83/00; Y10T83/242; Y10T83/929; Y10T83/9372; Y10T83/9377
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) | 1944-06-23 | 1944-12-23 | 1945-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-06-23 | 1948-12-23 | 1949-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-06-23 | 1952-12-23 | 1953-06-24 | $7700.00 | Window Closed / Lapsed |