US3034729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for coating pipe surfaces
Assignee: Pittsburgh Chemical Co
•
Filing: 1958-04-09
•
Granted: 1962-05-15
•
Expires: 1978-04-09
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Gray
- 👤 Graham N Gleysteen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:31
CPC Classifications
B; B05; B05C; B05C7/00; B05C7/02; B05D; B05D1/00; B05D1/34; B05D7/00; B05D7/22; B05D7/222; Y; Y10; Y10S; Y10S118/00; Y10S118/10
Claims Analysis
Total Claims: 0
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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) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |