Patent US248251A successfully refreshed from Google Patents.
Patent US3549178A successfully refreshed from Google Patents.
US3549178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint
Assignee: Rederi Nordstjernan AB
•
Filing: 1968-12-05
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Granted: 1970-12-22
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Expires: 1988-12-05
Abstract
No abstract record available.
Inventors
- 👤 Evert Flink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:05
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/02; F16L23/024; F16L23/028; F16L49/00; F16L49/04; Y; Y10; Y10T; Y10T403/00; Y10T403/21
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) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |