Patent US2944335A successfully refreshed from Google Patents.
US2944335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for widening pipes, tubes, spouts or the like made of rubber, synthetic rubber, or artificial resilient material
Assignee: Individual
•
Filing: 1957-10-14
•
Granted: 1960-07-12
•
Expires: 1977-10-14
Abstract
No abstract record available.
Inventors
- 👤 Kabel Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:21
CPC Classifications
B; B29; B29C; B29C55/00; B29C55/22; B29C55/24; B29K; B29K2021/00; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53657
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1806339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |