Patent US974652A successfully refreshed from Google Patents.
US974652A
Expired / Lapsed
US
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Oil-burner.
Assignee: Individual
•
Filing: 1910-05-28
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Granted: 1910-11-01
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Expires: 1930-05-28
Abstract
No abstract record available.
Inventors
- 👤 Adolphus Henry Forstner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:03
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B05B3/04
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) | 1913-10-31 | 1914-05-02 | 1914-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-10-31 | 1918-05-02 | 1918-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-10-31 | 1922-05-02 | 1922-11-01 | $7700.00 | Window Closed / Lapsed |