US2738215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanitary janitor tool
Assignee: Individual
•
Filing: 1952-06-04
•
Granted: 1956-03-13
•
Expires: 1972-06-04
Abstract
No abstract record available.
Inventors
- 👤 Thompson Bryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:16
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/12; E01H2001/122; E01H2001/1226; E01H2001/1233; E01H2001/1293
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |