US2328998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attrition product and method for making same
Assignee: Individual
•
Filing: 1939-12-27
•
Granted: 1943-09-07
•
Expires: 1959-12-27
Abstract
No abstract record available.
Inventors
- 👤 George S Radford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:01
CPC Classifications
B; B24; B24D; B24D11/00; B24D13/00; B24D13/02; B24D13/08; B24D13/10; B24D18/00; B24D18/0063; A; A61; A61C; A61C15/00; A61C15/04; A61C15/041; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982
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) | 1946-09-06 | 1947-03-08 | 1947-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-09-06 | 1951-03-08 | 1951-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-09-06 | 1955-03-08 | 1955-09-07 | $7700.00 | Window Closed / Lapsed |