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US2910308A
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Snap-in lug-in-groove type resilient conduit joint
Assignee: DURA VENT CORP
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Filing: 1956-04-10
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Granted: 1959-10-27
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Expires: 1976-04-10
Abstract
No abstract record available.
Inventors
- 👤 John H Carr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:53
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/084; F16L37/24; F16L37/244; F16L37/252; F16L37/56; F16L37/565; F23; F23J; F23J13/00; F23J13/02; F23J13/025; F23J13/04; F23J2213/00; F23J2213/20; F23J2213/202; Y; Y10; Y10S; Y10S285/00; Y10S285/921
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US63797A
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US266017A
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US2712950A
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US1067172A
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US1279935A
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US1481255A
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US2650112A
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US2650114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-26 | 1963-04-27 | 1963-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-26 | 1967-04-27 | 1967-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-26 | 1971-04-27 | 1971-10-27 | $7700.00 | Window Closed / Lapsed |