Patent US1610707A successfully refreshed from Google Patents.
US1610707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grate for boilers
Assignee: RATHGEB GRATE Co Inc
•
Filing: 1923-10-27
•
Granted: 1926-12-14
•
Expires: 1943-10-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph J Rathgeb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:00
CPC Classifications
F; F23; F23H; F23H3/00; F23H3/02
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) | 1929-12-13 | 1930-06-14 | 1930-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-12-13 | 1934-06-14 | 1934-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-12-13 | 1938-06-14 | 1938-12-14 | $7700.00 | Window Closed / Lapsed |