Patent US2553960A successfully refreshed from Google Patents.
US2553960A
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Assignee: Illinois Tool Works Inc
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Filing: 1946-04-11
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Granted: 1951-05-22
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Expires: 1966-04-11
Abstract
No abstract record available.
Inventors
- 👤 Swart Jan De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:05
CPC Classifications
A; A47; A47B; A47B57/00; A47B57/30; A47B57/40; A47B57/42; A47B57/425; F; F25; F25D; F25D23/00; F25D23/06; F25D23/065; F25D23/067
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE120510C
Cited
DE318077C
Cited
US182201A
Cited
US1140940A
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US1961935A
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US2157309A
Cited
US2355651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |