US2409320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding of rollers
Assignee: Motors Liquidation Co
•
Filing: 1944-03-30
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Granted: 1946-10-15
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Expires: 1964-03-30
Abstract
No abstract record available.
Inventors
- 👤 Attilio R Spicacci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:51
CPC Classifications
B; B24; B24B; B24B5/00; B24B5/02; B24B5/04; F; F16; F16C; F16C33/00; F16C33/30; F16C33/34; F16C33/36
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) | 1949-10-14 | 1950-04-15 | 1950-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-10-14 | 1954-04-15 | 1954-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-10-14 | 1958-04-15 | 1958-10-15 | $7700.00 | Window Closed / Lapsed |