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Patent US2579472A successfully refreshed from Google Patents.
US2579472A
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Vibration dampening support for cleaning and extracting apparatus ratus
Assignee: JOHN W CHAMBERLIN
•
Filing: 1945-07-30
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Granted: 1951-12-25
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Expires: 1965-07-30
Abstract
No abstract record available.
Inventors
- 👤 John W Chamberlin
- 👤 John F Horvath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:15
CPC Classifications
D; D06; D06F; D06F37/00; D06F37/20; D06F37/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |