Patent US974040A successfully refreshed from Google Patents.
US974040A
Expired / Lapsed
US
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Gas-burner.
Assignee: WILLIAM DONLEY
•
Filing: 1910-06-04
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Granted: 1910-10-25
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Expires: 1930-06-04
Abstract
No abstract record available.
Inventors
- 👤 Clyde Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:40
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/30; B01F25/31; B01F25/312; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87571; Y10T137/87587; Y10T137/87619; Y10T137/87627
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) | 1913-10-24 | 1914-04-25 | 1914-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-10-24 | 1918-04-25 | 1918-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-10-24 | 1922-04-25 | 1922-10-25 | $7700.00 | Window Closed / Lapsed |