US3484888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined floor wiper and scourer apparatus
Assignee: MACK C DAVIS
•
Filing: 1968-04-22
•
Granted: 1969-12-23
•
Expires: 1988-04-22
Abstract
No abstract record available.
Inventors
- 👤 Mack C Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:18
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2026638A
Cited
US2941225A
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US3050761A
Cited
US3008163A
Cited
US2958593A
Cited
US3061982A
Cited
US3080688A
Cited
FR1487987A
Cited
US3355844A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |