US3579670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe connector
Assignee: Individual
•
Filing: 1968-07-02
•
Granted: 1971-05-25
•
Expires: 1988-07-02
Abstract
Abstract A DEVICE FOR CONNECTING PIPES TOGETHER, CONNECTING A PIPE TO A WATER CLOSET OR SUPPORTING A CLOSET BEND PIPE WHICH UTILIZES A COLLAR SQUEEZING A RESILIENT GASKET AGAINST THE PIPE TO PROVIDE A WATER-TIGHT, MECHANICAL SEAL WITHOUT THE PROBLEMS USUALLY ASSOCIATED WITH THE NORMAL HOT LEAD TYPE OF SEALANT.
Inventors
- 👤 Emil A Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:12
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/02; E; E03; E03D; E03D11/00; E03D11/13; E03D11/16; F16L41/00; F16L41/02
Claims Analysis
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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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |