Patent US688310A successfully refreshed from Google Patents.
Patent US1362025A successfully refreshed from Google Patents.
US1362025A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spark-arrester
Assignee: YUBA Manufacturing Co
•
Filing: 1919-07-31
•
Granted: 1920-12-14
•
Expires: 1939-07-31
Abstract
No abstract record available.
Inventors
- 👤 Walter B Macaulay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:27
CPC Classifications
F; F23; F23J; F23J15/00; F23J15/02; F23J15/022
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) | 1923-12-14 | 1924-06-14 | 1924-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-12-14 | 1928-06-14 | 1928-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-12-14 | 1932-06-14 | 1932-12-14 | $7700.00 | Window Closed / Lapsed |