US3522122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced plastic pipe
Assignee: Individual
•
Filing: 1969-02-20
•
Granted: 1970-07-28
•
Expires: 1989-02-20
Abstract
No abstract record available.
Inventors
- 👤 Carl Brice De Ganahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:22
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/80; B29C53/8008; B29C53/805; B29C53/8058; F; F16; F16L; F16L9/00; F16L9/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |