US3394500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinder
Assignee: FMC Corp
•
Filing: 1965-05-13
•
Granted: 1968-07-30
•
Expires: 1985-05-13
Abstract
No abstract record available.
Inventors
- 👤 Melvin H Lill
- 👤 Weldon B Ellege
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:28
CPC Classifications
B; B24; B24B; B24B55/00; B24B55/06; B24B55/10; B24B55/102; B24B19/00; B24B19/26; B24B41/00; B24B41/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US507639A
Cited
US2734319A
Cited
US1121995A
Cited
US1453737A
Cited
US2230824A
Cited
US2316904A
Cited
US2633675A
Cited
US3022610A
Cited
US3060644A
Cited
US3157009A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |