Patent US2429426A successfully refreshed from Google Patents.
US2429426A
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Piston seal
Assignee: Bendix Aviation Corp
•
Filing: 1942-09-14
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Granted: 1947-10-21
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Expires: 1962-09-14
Abstract
No abstract record available.
Inventors
- 👤 John P Phillips
- 👤 Jr Louis F Ridder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:51
CPC Classifications
F; F16; F16J; F16J1/00; F16J1/005; F16J1/006
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-20 | 1951-04-21 | 1951-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-20 | 1955-04-21 | 1955-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-20 | 1959-04-21 | 1959-10-21 | $7700.00 | Window Closed / Lapsed |