US2498221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastener unit
Assignee: Illinois Tool Works Inc
•
Filing: 1945-09-22
•
Granted: 1950-02-21
•
Expires: 1965-09-22
Abstract
No abstract record available.
Inventors
- 👤 Poupitch Ougljesa Jules
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:45
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/24; F16B39/26; F16B37/00; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/956; Y10S411/96; Y10S411/964
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US90377A
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US271571A
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US1320259A
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US1394740A
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US1406423A
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FR24791E
Cited
US1945005A
Cited
USRE19492E
Cited
US2081065A
Cited
US2376167A
Cited
US2347852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |