Patent US3479196A successfully refreshed from Google Patents.
Patent US2495686A successfully refreshed from Google Patents.
US2495686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface cleaning and shampooing machine
Assignee: Individual
•
Filing: 1947-11-24
•
Granted: 1950-01-31
•
Expires: 1967-11-24
Abstract
No abstract record available.
Inventors
- 👤 Berberian Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:59
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4063; A47L11/4069; A47L11/29; A47L11/30; A47L11/302; A47L11/305; A47L11/4036; A47L11/4038; A47L11/4044
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US928456A
Cited
US935559A
Cited
US1211945A
Cited
US1498255A
Cited
US1808656A
Cited
US2039903A
Cited
US2217617A
Cited
US2168472A
Cited
US2153207A
Cited
US2239183A
Cited
US2250177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-30 | 1953-08-01 | 1954-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-30 | 1957-08-01 | 1958-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-30 | 1961-08-01 | 1962-01-31 | $7700.00 | Window Closed / Lapsed |