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Patent US3499546A successfully refreshed from Google Patents.
US3499546A
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US
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Hydraulic cushion device
Assignee: Amsted Industries Inc
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Filing: 1968-01-25
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Granted: 1970-03-10
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Expires: 1988-01-25
Abstract
No abstract record available.
Inventors
- 👤 Walter C Dilg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:29
CPC Classifications
B; B61; B61G; B61G9/00; B61G9/04; B61G9/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2841294A
Cited
US3175699A
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US3232443A
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US3378149A
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US3334757A
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US3410416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |