US2433539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blowpipe nozzle
Assignee: Linde Air Products Co
•
Filing: 1944-03-09
•
Granted: 1947-12-30
•
Expires: 1964-03-09
Abstract
No abstract record available.
Inventors
- 👤 Earl E Westerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:55
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/48; F23D14/52; F23D14/54; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49348; Y10T29/49428; Y10T29/49432
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE300705C
Cited
US400827A
Cited
US880099A
Cited
GB113032A
Cited
US1283157A
Cited
US1371309A
Cited
CH181091A
Cited
US2367316A
Cited
US2286191A
Cited
US2363250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-29 | 1951-06-30 | 1951-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-29 | 1955-06-30 | 1955-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-29 | 1959-06-30 | 1959-12-30 | $7700.00 | Window Closed / Lapsed |