US2468503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making tubing cleaners
Assignee: JM Huber Corp
•
Filing: 1946-10-12
•
Granted: 1949-04-26
•
Expires: 1966-10-12
Abstract
No abstract record available.
Inventors
- 👤 Roscoe C Lister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:48
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/0026; E; E21; E21B; E21B37/00; E21B37/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49826; Y10T29/49863; Y10T29/49865
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1748576A
Cited
US2139077A
Cited
US2259023A
Cited
US2325113A
Cited
US2321275A
Cited
US2335153A
Cited
US2412271A
Cited
US2402223A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-25 | 1952-10-25 | 1953-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-25 | 1956-10-25 | 1957-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-25 | 1960-10-25 | 1961-04-26 | $7700.00 | Window Closed / Lapsed |