Patent US2988134A successfully refreshed from Google Patents.
US2988134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous butt jointing of thermoplastics
Assignee: Union Carbide Corp
•
Filing: 1957-03-20
•
Granted: 1961-06-13
•
Expires: 1977-03-20
Abstract
No abstract record available.
Inventors
- 👤 Frank R Nissel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:49
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/40; B29C66/41; B29C66/43; B29C65/00; B29C65/02; B29C65/18; B29C65/74; B29C65/749; B29C65/78; B29C65/7858; B29C65/7888; B29C65/7894; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/114; B29C66/1142; B29C66/80; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/83415; B29C2793/00; B29C2793/0081; B29C66/70; B29C66/71; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/108; Y10T156/12; Y10T156/1317; Y10T156/1322; Y10T156/1326; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1715
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1763227A
Cited
US1899067A
Cited
US1916134A
Cited
US2438685A
Cited
US2516280A
Cited
US2469849A
Cited
US2614953A
Cited
US2587685A
Cited
US2590032A
Cited
US2556476A
Cited
US2621138A
Cited
US2770080A
Cited
US2783175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |