Patent US3371770A successfully refreshed from Google Patents.
US3371770A
Expired / Lapsed
US
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Apparatus for moving pipe through a coating machine
Assignee: American Pipe and Construction Co
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Filing: 1966-10-25
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Granted: 1968-03-05
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Expires: 1986-10-25
Abstract
No abstract record available.
Inventors
- 👤 Gordon C Graham
- 👤 Constantions E Zervos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:11
CPC Classifications
B; B28; B28B; B28B19/00; B28B19/0038
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2655066A
Cited
US2613706A
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US3090534A
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US3231957A
Cited
US3263284A
Cited
US3314115A
Cited
US3225415A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |