US2842181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Small eight prong washers connected in strip form
Assignee: Illinois Tool Works Inc
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Filing: 1955-12-19
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Granted: 1958-07-08
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Expires: 1975-12-19
Abstract
No abstract record available.
Inventors
- 👤 Frank J Machac
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:21
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/24; B; B21; B21D; B21D53/00; B21D53/16; B21D53/20; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/956; Y10S411/957
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) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |