US2853318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sleeve type pipe coupling with means to prevent pinching of the gaskets
Assignee: Individual
•
Filing: 1954-05-24
•
Granted: 1958-09-23
•
Expires: 1974-05-24
Abstract
No abstract record available.
Inventors
- 👤 Telford L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:15
CPC Classifications
F; F16; F16L; F16L21/00; F16L21/02; F16L21/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US740003A
Cited
US1853168A
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US2105022A
Cited
US2106829A
Cited
US2114771A
Cited
US2610870A
Cited
US2646996A
Cited
US2561887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |