US2599389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic fitting
Assignee: Douglas Aircraft Co Inc
•
Filing: 1949-10-17
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Granted: 1952-06-03
•
Expires: 1969-10-17
Abstract
No abstract record available.
Inventors
- 👤 William L Hume
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:13
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/04; F16L19/02; F16L19/025; F16L19/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US188213A
Cited
US1533886A
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US1817854A
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US1961453A
Cited
US2377196A
Cited
US2459956A
Cited
US2460032A
Cited
US2535694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-03 | 1955-12-03 | 1956-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-03 | 1959-12-03 | 1960-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-03 | 1963-12-03 | 1964-06-03 | $7700.00 | Window Closed / Lapsed |