US1706704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety system for burning fuel oil under pressure
Assignee: HARRY V WHIPPLE
•
Filing: 1927-04-01
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Granted: 1929-03-26
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Expires: 1947-04-01
Abstract
No abstract record available.
Inventors
- 👤 Ross M G Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:09
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/36; F23D11/46; F23N; F23N2239/00; F23N2239/06; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1797; Y10T137/1804; Y10T137/7287; Y10T137/7339; Y10T137/7345; Y10T137/8158; Y10T137/8342; Y10T74/00; Y10T74/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1932-03-25 | 1932-09-24 | 1933-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-03-25 | 1936-09-24 | 1937-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-03-25 | 1940-09-24 | 1941-03-26 | $7700.00 | Window Closed / Lapsed |