US2857175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe fitting capable of absorbing torsional deflections
Assignee: Individual
•
Filing: 1955-03-15
•
Granted: 1958-10-21
•
Expires: 1975-03-15
Abstract
No abstract record available.
Inventors
- 👤 Browning Harold
- 👤 Sidney P Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:39
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/10; F16L27/107; Y; Y10; Y10T; Y10T403/00; Y10T403/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US338848A
Cited
US1509021A
Cited
US1826666A
Cited
US2318590A
Cited
US2444904A
Cited
US2677393A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-20 | 1962-04-21 | 1962-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-20 | 1966-04-21 | 1966-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-20 | 1970-04-21 | 1970-10-21 | $7700.00 | Window Closed / Lapsed |