US891371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust-regenerator system.
Assignee: RATEAU STEAM REGENERATOR Co
•
Filing: 1905-09-09
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Granted: 1908-06-23
•
Expires: 1925-09-09
Abstract
No abstract record available.
Inventors
- 👤 Auguste Camille Edmond Rateau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:11
CPC Classifications
F; F01; F01K; F01K3/00; Y; Y02; Y02E; Y02E60/00; Y02E60/16
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) | 1911-06-23 | 1911-12-23 | 1912-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-06-23 | 1915-12-23 | 1916-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-06-23 | 1919-12-23 | 1920-06-23 | $7700.00 | Window Closed / Lapsed |