Patent US912879A successfully refreshed from Google Patents.
US912879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-generator.
Assignee: Individual
•
Filing: 1908-05-16
•
Granted: 1909-02-16
•
Expires: 1928-05-16
Abstract
No abstract record available.
Inventors
- 👤 August Noetel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:21
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/02; A61F7/03; A61F7/032
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1912-02-16 | 1912-08-17 | 1913-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-02-16 | 1916-08-17 | 1917-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-02-16 | 1920-08-17 | 1921-02-16 | $7700.00 | Window Closed / Lapsed |