US3486533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe insulation jacket
Assignee: RUST FURNACE CO
•
Filing: 1966-03-18
•
Granted: 1969-12-30
•
Expires: 1986-03-18
Abstract
No abstract record available.
Inventors
- 👤 Bernard E Doherty
- 👤 Harald C Bjerke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:13
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE455886C
Cited
DE473933C
Cited
US741629A
Cited
US1885800A
Cited
US2436452A
Cited
US3169754A
Cited
US3346248A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |