US2930634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupler and method of joining conduits
Assignee: Coast Manufacturing and Supply Co
•
Filing: 1957-02-21
•
Granted: 1960-03-29
•
Expires: 1977-02-21
Abstract
No abstract record available.
Inventors
- 👤 James A Merritt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:21
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/12; B29C66/122; B29C66/1222; B29C65/00; B29C65/02; B29C65/022; B29C65/024; B29C66/1224; B29C66/50; B29C66/51; B29C66/52; B29C66/522; B29C66/5221; B29C66/5229; B29C66/52291; B29C66/52292; B29C66/52295; B29C66/52298; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/81; Y; Y10; Y10S; Y10S285/00; Y10S285/919
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) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |