US667559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feeding scale-preventives into boilers.
Assignee: Individual
•
Filing: 1900-11-16
•
Granted: 1901-02-05
•
Expires: 1920-11-16
Abstract
No abstract record available.
Inventors
- 👤 George Neubauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:31
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/685; C02F1/686; F; F02; F02M; F02M25/00; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/85986
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) | 1904-02-05 | 1904-08-06 | 1905-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-02-05 | 1908-08-06 | 1909-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-02-05 | 1912-08-06 | 1913-02-05 | $7700.00 | Window Closed / Lapsed |