US2738529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined sponge and brush toilet bowl cleaner
Assignee: Individual
•
Filing: 1950-05-23
•
Granted: 1956-03-20
•
Expires: 1970-05-23
Abstract
No abstract record available.
Inventors
- 👤 Armin H Bernet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:23
CPC Classifications
A; A47; A47K; A47K11/00; A47K11/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US73746A
Cited
US219324A
Cited
US222031A
Cited
US464843A
Cited
US603581A
Cited
US953729A
Cited
US1639880A
Cited
US1715387A
Cited
AT136608B
Cited
US2518765A
Cited
FR934668A
Cited
US2603806A
Cited
US2642604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-20 | 1959-09-19 | 1960-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-20 | 1963-09-19 | 1964-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-20 | 1967-09-19 | 1968-03-20 | $7700.00 | Window Closed / Lapsed |