US2610696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drain trap scraping and cleaning means
Assignee: Individual
•
Filing: 1949-07-29
•
Granted: 1952-09-16
•
Expires: 1969-07-29
Abstract
No abstract record available.
Inventors
- 👤 De Ella B Mayberry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:20
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/30; E03C1/302; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4273; Y10T137/4456; Y10T137/4463; Y10T137/4576; Y10T137/4591
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1090059A
Cited
US1221984A
Cited
US2039467A
Cited
US2182680A
Cited
US2345603A
Cited
US2278067A
Cited
US2454884A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-16 | 1956-03-17 | 1956-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-16 | 1960-03-17 | 1960-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-16 | 1964-03-17 | 1964-09-16 | $7700.00 | Window Closed / Lapsed |