Patent US583501A successfully refreshed from Google Patents.
Patent US711031A successfully refreshed from Google Patents.
US711031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making graphite.
Assignee: Individual
•
Filing: 1900-12-22
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Granted: 1902-10-14
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Expires: 1920-12-22
Abstract
No abstract record available.
Inventors
- 👤 Edward Goodrich Acheson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:23
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/52; C04B35/528; C04B35/532; C01; C01B; C01B32/00
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) | 1905-10-13 | 1906-04-14 | 1906-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-10-13 | 1910-04-14 | 1910-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-10-13 | 1914-04-14 | 1914-10-14 | $7700.00 | Window Closed / Lapsed |