Patent US2797916A successfully refreshed from Google Patents.
US2797916A
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US
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Elastic elements for elastic suspensions in general
Assignee: Individual
•
Filing: 1953-10-30
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Granted: 1957-07-02
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Expires: 1973-10-30
Abstract
No abstract record available.
Inventors
- 👤 Pellarini Luigi
- 👤 Rossetti Fabio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:00
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/36; F16F1/42; F16F1/52; F16F2236/00; F16F2236/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR547570A
Cited
FR25794E
Cited
US1919033A
Cited
GB275519A
Cited
US1875314A
Cited
US2212769A
Cited
DE724359C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |