US1661721A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for grinding or comminuting rubber and other materials
Assignee: Individual
•
Filing: 1927-05-07
•
Granted: 1928-03-06
•
Expires: 1947-05-07
Abstract
No abstract record available.
Inventors
- 👤 Gardner Charles Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:39
CPC Classifications
B; B27; B27L; B27L11/00; B27L11/06; B02; B02C; B02C18/00; B02C18/06; B02C18/14; B23; B23Q; B23Q11/00; B23Q11/10; Y; Y10; Y10S; Y10S241/00; Y10S241/31
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) | 1931-03-06 | 1931-09-05 | 1932-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-03-06 | 1935-09-05 | 1936-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-03-06 | 1939-09-05 | 1940-03-06 | $7700.00 | Window Closed / Lapsed |