Patent US3055278A successfully refreshed from Google Patents.
US3055278A
Expired / Lapsed
US
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Reinforced plastic pipe
Assignee: Johns Manville Corp
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Filing: 1958-08-06
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Granted: 1962-09-25
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Expires: 1978-08-06
Abstract
No abstract record available.
Inventors
- 👤 Jr William Paul Kinneman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:07
CPC Classifications
B; B31; B31C; B31C3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US414649A
Cited
US679264A
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FR564929A
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US2321738A
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US2322677A
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US2716315A
Cited
US2786435A
Cited
US2876739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |