US2556047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuously fired oil-burning system
Assignee: Individual
•
Filing: 1946-10-03
•
Granted: 1951-06-05
•
Expires: 1966-10-03
Abstract
No abstract record available.
Inventors
- 👤 Arthur M Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:48
CPC Classifications
F; F23; F23M; F23M9/00; F23M9/06; F23M3/00; F23M5/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US68708A
Cited
US1453662A
Cited
US1489757A
Cited
US781922A
Cited
US976268A
Cited
US1423183A
Cited
US1500574A
Cited
US1515295A
Cited
US1688538A
Cited
US1822518A
Cited
US1993251A
Cited
US2054588A
Cited
US2121271A
Cited
US2175866A
Cited
US2220603A
Cited
US2379017A
Cited
US2457862A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-04 | 1954-12-04 | 1955-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-04 | 1958-12-04 | 1959-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-04 | 1962-12-04 | 1963-06-05 | $7700.00 | Window Closed / Lapsed |