US2634833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: MacLean Fogg Lock Nut Co
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Filing: 1947-02-08
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Granted: 1953-04-14
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Expires: 1967-02-08
Abstract
No abstract record available.
Inventors
- 👤 Jr John A Maclean
- 👤 Vernon C Stimpel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:50
CPC Classifications
E; E04; E04B; E04B5/00; E04B5/02; E04B5/10; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/974; Y10S411/983; Y10T; Y10T403/00; Y10T403/49; Y10T403/4941; Y10T403/71; Y10T403/7117
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) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |