Patent US682140A successfully refreshed from Google Patents.
US682140A
Expired / Lapsed
US
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Manufacture of refractory materials.
Assignee: BRITISH URALITE COMPANY Ltd
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Filing: 1901-06-17
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Granted: 1901-09-03
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Expires: 1921-06-17
Abstract
No abstract record available.
Inventors
- 👤 Richard J Friswell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:58
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/54; C23C14/542; C23C14/545; C23C14/547
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) | 1904-09-02 | 1905-03-04 | 1905-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-09-02 | 1909-03-04 | 1909-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-09-02 | 1913-03-04 | 1913-09-03 | $7700.00 | Window Closed / Lapsed |