Patent US3039140A successfully refreshed from Google Patents.
US3039140A
Expired / Lapsed
US
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Apparatus for manufacturing pipe insulation
Assignee: DURANT INSULATED PIPE Co
•
Filing: 1960-02-08
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Granted: 1962-06-19
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Expires: 1980-02-08
Abstract
No abstract record available.
Inventors
- 👤 Thomas I Andrews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:52
CPC Classifications
B; B29; B29C; B29C67/00; B29C67/24; B29C67/248; B29C33/00; B29C33/34; B29C33/36; B29C35/00; B29C35/02; B29C35/04; B29C35/045; B29L; B29L2023/00; B29L2023/22; B29L2023/225
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) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |