US3022610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinder
Assignee: Individual
•
Filing: 1958-10-14
•
Granted: 1962-02-27
•
Expires: 1978-10-14
Abstract
No abstract record available.
Inventors
- 👤 Harry B Barrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:59
CPC Classifications
B; B24; B24B; B24B19/00; B24B19/26; B24B19/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |