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US2616328A
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Fastener
Assignee: WILLIAM F MATHIAS JR
•
Filing: 1951-02-01
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Granted: 1952-11-04
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Expires: 1971-02-01
Abstract
No abstract record available.
Inventors
- 👤 Kingsmore Harry Vincent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:15
CPC Classifications
F; F16; F16B; F16B19/00; F16B19/04; F16B19/08; F16B19/10; F16B19/1027; F16B19/1036; F16B19/1081; F16B29/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2181103A
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US2241609A
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US2236079A
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Cited
US2379786A
Cited
GB565003A
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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) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |