Patent US3986012A successfully refreshed from Google Patents.
Patent US2308745A successfully refreshed from Google Patents.
US2308745A
Expired / Lapsed
US
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Pipe joint
Assignee: Chance Brothers & Co Ltd
•
Filing: 1941-09-29
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Granted: 1943-01-19
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Expires: 1961-09-29
Abstract
No abstract record available.
Inventors
- 👤 English John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:58
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/02; F16L27/00; F16L27/02; F16L27/04; F16L27/053; Y; Y10; Y10S; Y10S285/00; Y10S285/911
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-01-18 | 1946-07-20 | 1947-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-01-18 | 1950-07-20 | 1951-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-01-18 | 1954-07-20 | 1955-01-19 | $7700.00 | Window Closed / Lapsed |