US2923561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sectional anchor ring for bell joint clamp
Assignee: MB Skinner Co
•
Filing: 1953-02-09
•
Granted: 1960-02-02
•
Expires: 1973-02-09
Abstract
No abstract record available.
Inventors
- 👤 Patterson D Merrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:11
CPC Classifications
F; F16; F16B; F16B2/00; F16B2/02; F16B2/06; F16B2/065; F16L; F16L55/00; F16L55/16; F16L55/168; F16L55/178
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US321260A
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US1412562A
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US940098A
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US1057499A
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US1290590A
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US1951034A
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GB402490A
Cited
US2076876A
Cited
US2079731A
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US2140939A
Cited
US2183551A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-01 | 1963-08-03 | 1964-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-01 | 1967-08-03 | 1968-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-01 | 1971-08-03 | 1972-02-02 | $7700.00 | Window Closed / Lapsed |