US2608840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knuckle joint for tie boring machines
Assignee: Minnesota and Ontario Paper Co
•
Filing: 1948-05-29
•
Granted: 1952-09-02
•
Expires: 1968-05-29
Abstract
No abstract record available.
Inventors
- 👤 Fred J Lahaie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:02
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/50; F16D3/72; F16D3/74
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US558497A
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US563545A
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US1414411A
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US1445272A
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US1582284A
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US1660195A
Cited
AT117773B
Cited
US2166376A
Cited
US2170627A
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GB514824A
Cited
US2319027A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-02 | 1956-03-03 | 1956-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-02 | 1960-03-03 | 1960-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-02 | 1964-03-03 | 1964-09-02 | $7700.00 | Window Closed / Lapsed |