US3037221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of assembly of conical washer on a threaded fastener
Assignee: Illinois Tool Works Inc
•
Filing: 1959-08-26
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Granted: 1962-06-05
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Expires: 1979-08-26
Abstract
No abstract record available.
Inventors
- 👤 Jr James C Lanius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:43
CPC Classifications
F; F16; F16B; F16B43/00; B; B23; B23P; B23P19/00; B23P19/04; B23P19/08; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/956; Y10S411/957; Y10S411/959; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49917; Y10T29/49918; Y10T29/49925; Y10T29/49934
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE210162C
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US721559A
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US1868415A
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US2139590A
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US2311299A
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US3009176A
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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) | 1965-06-04 | 1965-12-04 | 1966-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-04 | 1969-12-04 | 1970-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-04 | 1973-12-04 | 1974-06-05 | $7700.00 | Window Closed / Lapsed |