US2704424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for abrading
Assignee: Individual
•
Filing: 1952-07-28
•
Granted: 1955-03-22
•
Expires: 1972-07-28
Abstract
No abstract record available.
Inventors
- 👤 D Avaucourt Pierre De Vitry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:52
CPC Classifications
B; B24; B24B; B24B13/00; B24B13/04; B24B13/043; B24B55/00; B24B55/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1458623A
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US1515681A
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US2113367A
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US2224265A
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US2227697A
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US2183490A
Cited
US2395420A
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US2517193A
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US2527804A
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US2572529A
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US2571793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-03-21 | 1958-09-20 | 1959-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-21 | 1962-09-20 | 1963-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-21 | 1966-09-20 | 1967-03-22 | $7700.00 | Window Closed / Lapsed |