Patent US2998269A successfully refreshed from Google Patents.
US2998269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic pipe coupling having an adhesive coated wedge ring
Assignee: Amercoat Corp
•
Filing: 1958-10-30
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Granted: 1961-08-29
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Expires: 1978-10-30
Abstract
No abstract record available.
Inventors
- 👤 Charles R Houghton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:27
CPC Classifications
F; F16; F16L; F16L47/00; F16L47/02; F16L31/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US385287A
Cited
US595437A
Cited
DE270219C
Cited
US693830A
Cited
US765437A
Cited
CH70186A
Cited
US1494523A
Cited
GB310452A
Cited
GB310457A
Cited
US1967467A
Cited
US2091852A
Cited
US1986357A
Cited
US2070291A
Cited
US2346051A
Cited
US2515899A
Cited
US2437586A
Cited
US2639731A
Cited
US2751237A
Cited
US2759254A
Cited
FR1115104A
Cited
US2773710A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |