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US2795221A
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Assignee: Groov Pin Corp
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Filing: 1953-03-16
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Granted: 1957-06-11
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Expires: 1973-03-16
Abstract
No abstract record available.
Inventors
- 👤 Felix W Braendel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:09
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/24; F02F1/242; F16; F16B; F16B37/00; F16B37/12; F16B37/122; H; H01; H01T; H01T13/00; H01T13/02; H01T13/08; F05; F05C; F05C2201/00; F05C2201/02; F05C2201/021; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965; Y10S411/968; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49925; Y10T29/49934; Y10T408/00; Y10T408/89; Y10T408/904; Y10T408/9046; Y10T408/907
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US21960A
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US586419A
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US2155481A
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US2152681A
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US2302359A
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US2400318A
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FR905441A
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US2455885A
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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) | 1960-06-10 | 1960-12-10 | 1961-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-10 | 1964-12-10 | 1965-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-10 | 1968-12-10 | 1969-06-11 | $7700.00 | Window Closed / Lapsed |