US2428285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration isolator
Assignee: FRANK H NEWTON
•
Filing: 1946-03-11
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Granted: 1947-09-30
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Expires: 1966-03-11
Abstract
No abstract record available.
Inventors
- 👤 Lea Walter Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:31
CPC Classifications
A; A61; A61H; A61H1/00; A61H1/005; A61H23/00; A61H23/02; A61H23/0254; A61H23/0263
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US653906A
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US1845941A
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US2235183A
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US2234770A
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US2235158A
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US2368727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-29 | 1951-03-31 | 1951-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-29 | 1955-03-31 | 1955-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-29 | 1959-03-31 | 1959-09-30 | $7700.00 | Window Closed / Lapsed |