US2974723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Evaporating nozzle for a liquid fuel burning torch
Assignee: WORCESTER TAPER PIN CO
•
Filing: 1955-12-27
•
Granted: 1961-03-14
•
Expires: 1975-12-27
Abstract
No abstract record available.
Inventors
- 👤 Roswell W Blanchard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:01
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/36; F23D11/44; F23D11/441
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US188322A
Cited
US664762A
Cited
US1202339A
Cited
US1197503A
Cited
GB116259A
Cited
US1269282A
Cited
GB339307A
Cited
US1991638A
Cited
US2362213A
Cited
US2551114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-13 | 1964-09-12 | 1965-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-13 | 1968-09-12 | 1969-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-13 | 1972-09-12 | 1973-03-14 | $7700.00 | Window Closed / Lapsed |