US2995990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the production of gusseted tubing
Assignee: Union Carbide Corp
•
Filing: 1956-04-18
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Granted: 1961-08-15
•
Expires: 1976-04-18
Abstract
No abstract record available.
Inventors
- 👤 Russell F Pierce
- 👤 Joe S Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:11
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C48/00; B29C48/001; B29C48/0022; B29C53/00; B29C53/36; B29C53/38; B29C53/48; B29C53/50; B29C65/24; B29C65/30; B29C65/305; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/344; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/432; B29C66/4322; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81411; B29C66/81421; B29C66/81422; B29C66/81427; B29C66/816; B29C66/8167; B29C66/83; B29C66/836; B29C2793/00; B29C2793/0063; B29C48/0018; B29C48/0019; B29C48/03; B29C48/09; B29C48/10; B29C66/70; B29C66/71; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |