Patent US2831376A successfully refreshed from Google Patents.
US2831376A
Expired / Lapsed
US
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Attachment for portable power tool
Assignee: Individual
•
Filing: 1955-09-09
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Granted: 1958-04-22
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Expires: 1975-09-09
Abstract
No abstract record available.
Inventors
- 👤 Arnold J Daniels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:23
CPC Classifications
B; B25; B25H; B25H1/00; B25H1/0021; B25H1/0078; Y; Y10; Y10S; Y10S408/00; Y10S408/71; Y10T; Y10T408/00; Y10T408/21; Y10T408/55; Y10T408/564; Y10T408/5653
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |