US3375540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attachment for floor cleaning machine
Assignee: Individual
•
Filing: 1965-07-19
•
Granted: 1968-04-02
•
Expires: 1985-07-19
Abstract
No abstract record available.
Inventors
- 👤 Elmer A Hyde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:56
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4044; A47L11/29; A47L11/30; A47L11/4038; A47L11/408; A47L11/4088; A47L11/4091
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1948815A
Cited
US2149453A
Cited
US2680260A
Cited
US2663893A
Cited
US3027581A
Cited
US3029461A
Cited
US3264674A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |