Patent US2727552A successfully refreshed from Google Patents.
US2727552A
Expired / Lapsed
US
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Sheet metal retainer for threaded fasteners
Assignee: Tinnerman Products Inc
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Filing: 1953-03-12
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Granted: 1955-12-20
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Expires: 1973-03-12
Abstract
No abstract record available.
Inventors
- 👤 Jerry F Chvesta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:43
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/04; F16B37/044; Y; Y10; Y10S; Y10S411/00; Y10S411/913
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-19 | 1959-06-20 | 1959-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-19 | 1963-06-20 | 1963-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-19 | 1967-06-20 | 1967-12-20 | $7700.00 | Window Closed / Lapsed |