Patent US3052911A successfully refreshed from Google Patents.
US3052911A
Expired / Lapsed
US
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Floor waxing machine
Assignee: OSROW PRODUCTS CORP
•
Filing: 1959-07-13
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Granted: 1962-09-11
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Expires: 1979-07-13
Abstract
No abstract record available.
Inventors
- 👤 Osrow Leonard
- 👤 Osrow Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:57
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/02; A47L11/04; A47L11/08; A47L11/085; A47L11/4036; A47L11/4052; A47L11/4058; A47L11/4075; A47L11/408; A47L11/4083
Claims Analysis
Total Claims: 0
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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) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |