US2844391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal for fluid couplings
Assignee: CHAR LYNN CO
•
Filing: 1954-08-05
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Granted: 1958-07-22
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Expires: 1974-08-05
Abstract
No abstract record available.
Inventors
- 👤 Kenneth A Albers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:31
CPC Classifications
F; F16; F16K; F16K35/00; F16L; F16L37/00; F16L37/24; F16L37/256; F16L37/28; F16L37/30; F16L37/367; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/87925; Y10T137/87933
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) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |