Patent US2538865A successfully refreshed from Google Patents.
US2538865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Washing machine for venetian blinds
Assignee: Individual
•
Filing: 1948-05-19
•
Granted: 1951-01-23
•
Expires: 1968-05-19
Abstract
No abstract record available.
Inventors
- 👤 Eugene E Dyson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:44
CPC Classifications
A; A47; A47L; A47L4/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US586858A
Cited
US1555837A
Cited
US672788A
Cited
US1787820A
Cited
US1871339A
Cited
US1816393A
Cited
US2019206A
Cited
US2050649A
Cited
US2410934A
Cited
US2443859A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-22 | 1954-07-24 | 1955-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-22 | 1958-07-24 | 1959-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-22 | 1962-07-24 | 1963-01-23 | $7700.00 | Window Closed / Lapsed |