US2437340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction device for removing dust from fabric or the like
Assignee: Individual
•
Filing: 1944-12-01
•
Granted: 1948-03-09
•
Expires: 1964-12-01
Abstract
No abstract record available.
Inventors
- 👤 Alfred J Zugehoer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:39
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/50; A47L13/502
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1729253A
Cited
US1104668A
Cited
US1785873A
Cited
US2031374A
Cited
US2052766A
Cited
US2159176A
Cited
US2188717A
Cited
US2197869A
Cited
US2170528A
Cited
US2331457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-09 | 1951-09-08 | 1952-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-09 | 1955-09-08 | 1956-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-09 | 1959-09-08 | 1960-03-09 | $7700.00 | Window Closed / Lapsed |