US2715813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injector and flame holder
Assignee: Individual
•
Filing: 1952-04-14
•
Granted: 1955-08-23
•
Expires: 1972-04-14
Abstract
No abstract record available.
Inventors
- 👤 Frederick T Holmes
- 👤 Robin E Taber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:16
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/02; F23R3/16; F23R3/18; F23R3/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1924400A
Cited
US2214568A
Cited
US2618928A
Cited
US2547936A
Cited
US2439554A
Cited
US2518000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-22 | 1959-02-21 | 1959-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-22 | 1963-02-21 | 1963-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-22 | 1967-02-21 | 1967-08-23 | $7700.00 | Window Closed / Lapsed |