US3084088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a bituminous coated glass fiber pipe
Assignee: Perma Tubes Ltd USA
•
Filing: 1958-12-15
•
Granted: 1963-04-02
•
Expires: 1978-12-15
Abstract
No abstract record available.
Inventors
- 👤 Jules W Hunkeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:29
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31815
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) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |