Patent US2967315A successfully refreshed from Google Patents.
US2967315A
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US
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Hand-propelled polishing machine
Assignee: JEROME D ROSENBERG
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Filing: 1957-01-28
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Granted: 1961-01-10
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Expires: 1977-01-28
Abstract
No abstract record available.
Inventors
- 👤 Jim D Helbig
- 👤 Marvin P Warner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:56
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/02; A47L11/10; A47L11/14; A47L11/16; A47L11/162; A47L11/4036; A47L11/4038; A47L11/4052; A47L11/4058; A47L11/4063; A47L11/4066; A47L11/4069; A47L11/4075
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1497921A
Cited
US1957790A
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US2023588A
Cited
US2545635A
Cited
US2774199A
Cited
US2727262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |