US2880435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe cleaning apparatus
Assignee: CORWIN M HALE
•
Filing: 1955-01-18
•
Granted: 1959-04-07
•
Expires: 1975-01-18
Abstract
No abstract record available.
Inventors
- 👤 Deutsch Leo
- 👤 Herman T Hale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:24
CPC Classifications
E; E03; E03F; E03F9/00; E03F9/002; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7005; Y10T403/7007
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US808008A
Cited
GB191122951A
Cited
US1173682A
Cited
US1758504A
Cited
US1600373A
Cited
US2092060A
Cited
US2448548A
Cited
US2527256A
Cited
US2711199A
Cited
US2764310A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |