US2581416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring shock and vibration isolator
Assignee: Individual
•
Filing: 1945-10-02
•
Granted: 1952-01-08
•
Expires: 1965-10-02
Abstract
No abstract record available.
Inventors
- 👤 James W Irby
- 👤 Johannesburg Wilbur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:10
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/04; F16F1/12; F16F1/125; F16F15/00; F16F15/02; F16F15/04; F16F15/06; F16F15/067
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US431250A
Cited
US1320288A
Cited
US1319949A
Cited
US1114417A
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US1089748A
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US1382112A
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GB192578A
Cited
US1602337A
Cited
GB206316A
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US1734806A
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GB305969A
Cited
US1987365A
Cited
US1988295A
Cited
US2097418A
Cited
GB509121A
Cited
US2289514A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |