US2486287A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing means for the joints between the movable and stationary walls of an adjustable wind tunnel nozzle
Assignee: PITTSBURGH DES MOINES Co
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Filing: 1947-03-13
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Granted: 1949-10-25
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Expires: 1967-03-13
Abstract
No abstract record available.
Inventors
- 👤 James O Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:04
CPC Classifications
G; G01; G01M; G01M9/00; G01M9/02; G01M9/04; F; F16; F16J; F16J15/00; F16J15/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |