US2482215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil burner
Assignee: Individual
•
Filing: 1946-12-13
•
Granted: 1949-09-20
•
Expires: 1966-12-13
Abstract
No abstract record available.
Inventors
- 👤 Russell Peter Kephart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:00
CPC Classifications
F; F23; F23L; F23L7/00; F23L7/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US38791A
Cited
US68706A
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US95688A
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US481494A
Cited
US1081015A
Cited
US1275841A
Cited
US1334456A
Cited
US1383720A
Cited
US1362789A
Cited
US1460719A
Cited
US2387420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-19 | 1953-03-21 | 1953-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-19 | 1957-03-21 | 1957-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-19 | 1961-03-21 | 1961-09-20 | $7700.00 | Window Closed / Lapsed |