US3466020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heater for plastic pipe
Assignee: Individual
•
Filing: 1967-12-28
•
Granted: 1969-09-09
•
Expires: 1987-12-28
Abstract
No abstract record available.
Inventors
- 👤 Charles F Blinne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:38
CPC Classifications
F; F16; F16L; F16L1/00; F16L1/024; F16L1/06; B; B29; B29B; B29B13/00; B29B13/02; B29B13/023; B29B13/024; B29C; B29C35/00; B29C35/02; B29C35/04; B29C35/045; B29C2035/047; B29L; B29L2023/00; B29L2023/22
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) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |