Patent US2985469A successfully refreshed from Google Patents.
US2985469A
Expired / Lapsed
US
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Snap-fit plastic pipe joint
Assignee: Phillips Petroleum Co
•
Filing: 1957-09-09
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Granted: 1961-05-23
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Expires: 1977-09-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Mark M Bowman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:55
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/084; F16L37/02; F16L37/04; Y; Y10; Y10S; Y10S285/00; Y10S285/921; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49872; Y10T29/49876
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US686061A
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US1867430A
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US1985325A
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US2304114A
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US2326292A
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US2366814A
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US2366067A
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US2507536A
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US2755110A
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US2889582A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |