US2878041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamped flange joint with means for maintaining a fluid seal under varying temperature conditions
Assignee: Individual
•
Filing: 1954-09-30
•
Granted: 1959-03-17
•
Expires: 1974-09-30
Abstract
No abstract record available.
Inventors
- 👤 James C Hobbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:56
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/02; F16L23/036; Y; Y10; Y10S; Y10S285/00; Y10S285/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
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Cited
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Cited
US2166412A
Cited
US2335040A
Cited
US2547321A
Cited
US2512294A
Cited
US2695184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |