US2597971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary buffing and polishing machine
Assignee: Individual
•
Filing: 1948-03-26
•
Granted: 1952-05-27
•
Expires: 1968-03-26
Abstract
No abstract record available.
Inventors
- 👤 Lee H Burnham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:14
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4038; A47L11/02; A47L11/10; A47L11/14; A47L11/16; A47L11/162; A47L11/4063; A47L11/4069; A47L11/4075
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1000696A
Cited
US1667329A
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US2008260A
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GB416055A
Cited
US1979527A
Cited
US2014119A
Cited
US2114966A
Cited
US2173350A
Cited
US2103444A
Cited
US2289117A
Cited
US2300138A
Cited
US2417620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |