US2660835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for abrading bisque ware
Assignee: Individual
•
Filing: 1951-12-17
•
Granted: 1953-12-01
•
Expires: 1971-12-17
Abstract
No abstract record available.
Inventors
- 👤 Oscar J Burden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:15
CPC Classifications
B; B28; B28B; B28B11/00; B28B11/18; B28B11/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1482473A
Cited
US1328603A
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US1512350A
Cited
US1789657A
Cited
US2347164A
Cited
US2554701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-30 | 1957-06-01 | 1957-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-30 | 1961-06-01 | 1961-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-30 | 1965-06-01 | 1965-12-01 | $7700.00 | Window Closed / Lapsed |