US2724433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil burners of the low pressure type
Assignee: HENNEY MOTOR Co Inc
•
Filing: 1951-06-28
•
Granted: 1955-11-22
•
Expires: 1971-06-28
Abstract
No abstract record available.
Inventors
- 👤 Robert R Witherell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:41
CPC Classifications
F; F23; F23K; F23K5/00; F23K5/02; F23K5/14; F23K5/142; F23K5/145; F23D; F23D11/00; F23D11/001; F23D11/10; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3009; Y10T137/7287; Y10T137/7358
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-21 | 1959-05-23 | 1959-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-21 | 1963-05-23 | 1963-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-21 | 1967-05-23 | 1967-11-22 | $7700.00 | Window Closed / Lapsed |