US3469862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion joints with frozen seals
Assignee: English Electric Co Ltd
•
Filing: 1966-03-08
•
Granted: 1969-09-30
•
Expires: 1986-03-08
Abstract
No abstract record available.
Inventors
- 👤 George William Conibeer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:21
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/12; F16J; F16J3/00; F16J3/04; F16J3/047; F16L51/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE468847C
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FR689555A
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DE835092C
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GB675935A
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US2799522A
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US2992017A
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US3025087A
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US3169576A
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US3129947A
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FR1299572A
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US3331608A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |