US910221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic gas cut-off.
Assignee: Individual
•
Filing: 1908-08-17
•
Granted: 1909-01-19
•
Expires: 1928-08-17
Abstract
No abstract record available.
Inventors
- 👤 Henry Niemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:19
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/06; F23N5/067; Y; Y10; Y10S; Y10S236/00; Y10S236/05; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7423; Y10T137/7426; Y10T137/7433
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) | 1912-01-19 | 1912-07-20 | 1913-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-01-19 | 1916-07-20 | 1917-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-01-19 | 1920-07-20 | 1921-01-19 | $7700.00 | Window Closed / Lapsed |