Patent US649048A successfully refreshed from Google Patents.
US649048A
Expired / Lapsed
US
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Art of purifying petroleum.
Assignee: SOLAR REFINING Co
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Filing: 1888-12-10
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Granted: 1900-05-08
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Expires: 1908-12-10
Abstract
No abstract record available.
Inventors
- 👤 Herman Frasch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:24
CPC Classifications
C; C10; C10G; C10G25/00; C10G25/02; C10G25/03; C10G25/05
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) | 1903-05-08 | 1903-11-07 | 1904-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-05-08 | 1907-11-07 | 1908-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-05-08 | 1911-11-07 | 1912-05-08 | $7700.00 | Window Closed / Lapsed |