US2738210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling device
Assignee: Individual
•
Filing: 1951-03-28
•
Granted: 1956-03-13
•
Expires: 1971-03-28
Abstract
No abstract record available.
Inventors
- 👤 Alf H Hjembo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:41
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/10; F16D1/108; F16B; F16B2200/00; F16B2200/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US59160A
Cited
US262553A
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US707357A
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US734880A
Cited
US877113A
Cited
US1301160A
Cited
US1715293A
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US2206223A
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US2494639A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |