US2822559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush lock
Assignee: Manville Manufacturing Corp
•
Filing: 1955-04-08
•
Granted: 1958-02-11
•
Expires: 1975-04-08
Abstract
No abstract record available.
Inventors
- 👤 Charles J Manville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:45
CPC Classifications
B; B25; B25G; B25G3/00; Y; Y10; Y10T; Y10T403/00; Y10T403/60; Y10T403/606; Y10T403/70; Y10T403/7005; Y10T403/7007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US771740A
Cited
US923545A
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US1259706A
Cited
US1818581A
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US1897365A
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US1911181A
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US2661862A
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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) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |