US3456394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding machines
Assignee: B ELLIOTT 167 IMPERIAL DRIVE HARROW MIDDLESEX ENGLAND A BRITISH Co PLC
•
Filing: 1965-11-26
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Granted: 1969-07-22
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Expires: 1985-11-26
Abstract
No abstract record available.
Inventors
- 👤 Robert J Welsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:50
CPC Classifications
B; B24; B24B; B24B49/00; B24B49/16; B24B49/02; B24B49/04; B24B5/00; B24B5/02; B24B5/16; B24B5/167
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1225858A
Cited
US1847167A
Cited
GB786611A
Cited
US2961808A
Cited
US3088250A
Cited
US3281995A
Cited
US3321869A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |