Patent US2185744A successfully refreshed from Google Patents.
Patent US2714878A successfully refreshed from Google Patents.
US2714878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Petroleum heater
Assignee: Individual
•
Filing: 1950-10-03
•
Granted: 1955-08-09
•
Expires: 1970-10-03
Abstract
No abstract record available.
Inventors
- 👤 Lev A Mekler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:33
CPC Classifications
C; C10; C10G; C10G9/00; C10G9/14; C10G9/18; C10G9/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB189322775A
Cited
GB242198A
Cited
US1881275A
Cited
US2147610A
Cited
US2338295A
Cited
US2479544A
Cited
US2641234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-08 | 1959-02-07 | 1959-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-08 | 1963-02-07 | 1963-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-08 | 1967-02-07 | 1967-08-09 | $7700.00 | Window Closed / Lapsed |