Patent US2989769A successfully refreshed from Google Patents.
US2989769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floor drying apparatus
Assignee: NOBLES ENGINEERING AND MANUFACTURING Co
•
Filing: 1957-12-23
•
Granted: 1961-06-27
•
Expires: 1977-12-23
Abstract
No abstract record available.
Inventors
- 👤 Frank C Houser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:03
CPC Classifications
A; A47; A47L; A47L7/00; A47L7/0004; A47L7/0009; A47L7/0023; A47L7/0028; A47L7/0038; A47L7/0042
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US954541A
Cited
US1295987A
Cited
US1647005A
Cited
US1849663A
Cited
US2534808A
Cited
US2549181A
Cited
US2731103A
Cited
US2643732A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |