US2596952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion insert
Assignee: Illinois Tool Works Inc
•
Filing: 1950-05-18
•
Granted: 1952-05-13
•
Expires: 1970-05-18
Abstract
No abstract record available.
Inventors
- 👤 Edmond C Crowther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:49
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/02; F16B13/025; F16B13/12; F16B13/122
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1342738A
Cited
AT7891B
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US1095366A
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US1203546A
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US1169693A
Cited
US1784755A
Cited
US1940413A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-13 | 1955-11-12 | 1956-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-13 | 1959-11-12 | 1960-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-13 | 1963-11-12 | 1964-05-13 | $7700.00 | Window Closed / Lapsed |