US1963253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of abrasive articles
Assignee: Bakelite Corp
•
Filing: 1930-10-08
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Granted: 1934-06-19
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Expires: 1950-10-08
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Upper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:31
CPC Classifications
C; C08; C08L; C08L61/00; C08L61/04; C08L61/06; C08L61/12; B; B24; B24D; B24D3/00; B24D3/02; B24D3/20
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) | 1937-06-18 | 1937-12-18 | 1938-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-06-18 | 1941-12-18 | 1942-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-06-18 | 1945-12-18 | 1946-06-19 | $7700.00 | Window Closed / Lapsed |