Patent US2652740A successfully refreshed from Google Patents.
US2652740A
Expired / Lapsed
US
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Bimetallic fastener
Assignee: Individual
•
Filing: 1951-04-21
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Granted: 1953-09-22
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Expires: 1971-04-21
Abstract
No abstract record available.
Inventors
- 👤 Fruth Hal Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:02
CPC Classifications
F; F16; F16B; F16B19/00; F16B19/04; F16B19/08; F16B19/10; F16B19/1027; F16B19/1036
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US786692A
Cited
US1388469A
Cited
US1478028A
Cited
US2362424A
Cited
US2386922A
Cited
US2575213A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |