US2228779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed joint
Assignee: Douglas Aircraft Co Inc
•
Filing: 1939-01-03
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Granted: 1941-01-14
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Expires: 1959-01-03
Abstract
No abstract record available.
Inventors
- 👤 Vladimir H Pavlecka
- 👤 Kenneth F Ridley
- 👤 Allan B Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:12
CPC Classifications
F; F16; F16B; F16B33/00; F16B33/004; B; B63; B63B; B63B3/00; B63B3/14; B63B3/68; B64; B64D; B64D37/00; B64D37/02; F16B5/00; F16B5/04; Y; Y10; Y10S; Y10S29/00; Y10S29/034; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49622
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-01-14 | 1944-07-15 | 1945-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-01-14 | 1948-07-15 | 1949-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-01-14 | 1952-07-15 | 1953-01-14 | $7700.00 | Window Closed / Lapsed |