US2487775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid fuel burning space heater
Assignee: Individual
•
Filing: 1944-08-15
•
Granted: 1949-11-08
•
Expires: 1964-08-15
Abstract
No abstract record available.
Inventors
- 👤 William G Cartter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:59
CPC Classifications
F; F24; F24C; F24C3/00; F24C3/002; F24C15/00; F24C15/30
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1196019A
Cited
US1064258A
Cited
US1216848A
Cited
US1147916A
Cited
US1660688A
Cited
US1655211A
Cited
US1652268A
Cited
US1695079A
Cited
US1757905A
Cited
US1991788A
Cited
GB436681A
Cited
GB447840A
Cited
US2163928A
Cited
US2277201A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |