Patent US3493236A successfully refreshed from Google Patents.
US3493236A
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US
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Socket pipe sealing assembly
Assignee: DEUTSCHE STEINZEUG U KUNSTSTOFFWARENFABRIK fur KANALISATION und CHEMISCHE IND
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Filing: 1966-05-11
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Granted: 1970-02-03
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Expires: 1986-05-11
Abstract
No abstract record available.
Inventors
- 👤 Friedrich Bernhard Kleindienst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:49
CPC Classifications
F; F16; F16L; F16L17/00; F16L17/02; F16L17/03; F16L17/035; E; E03; E03F; E03F3/00; E03F3/04; F16L17/025; F16L21/00; F16L21/002; F16L21/005; F16L27/00; F16L27/10; F16L27/1017; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49872
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1856581A
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US1856890A
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US2451070A
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US2501943A
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DE1055460B
Cited
US2955322A
Cited
US3064983A
Cited
US3135519A
Cited
US3150876A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |