Patent US2981485A successfully refreshed from Google Patents.
US2981485A
Expired / Lapsed
US
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Discharge apparatus for brush disintegrators and the like
Assignee: Individual
•
Filing: 1958-05-12
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Granted: 1961-04-25
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Expires: 1978-05-12
Abstract
No abstract record available.
Inventors
- 👤 Nell C Mainone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:38
CPC Classifications
B; B27; B27L; B27L11/00; B27L11/002; Y; Y10; Y10S; Y10S241/00; Y10S241/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1754729A
Cited
US1851034A
Cited
US1960836A
Cited
US2546286A
Cited
US2712905A
Cited
US2705597A
Cited
US2865416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |