US2903279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Longitudinally-divided sleeve type coupling with sealing means
Assignee: Stora Enso Oyj
•
Filing: 1956-12-26
•
Granted: 1959-09-08
•
Expires: 1976-12-26
Abstract
No abstract record available.
Inventors
- 👤 Bergstedt Alf Johan Alexander
- 👤 Rydahl Ernst Ake Hilding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:37
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/12; F16L37/1225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US372568A
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US1538007A
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US1622768A
Cited
US2121710A
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US2516743A
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US2519203A
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US2747900A
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US2826437A
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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) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |