Patent US3606073A successfully refreshed from Google Patents.
US3606073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cap for flare fitting
Assignee: Pennwalt Corp
•
Filing: 1969-12-16
•
Granted: 1971-09-20
•
Expires: 1989-12-16
Abstract
Abstract A PLASTIC CAP, FOR PRESSURE-SEALING A TUBULAR THREADED FLARE FITTING AND PROTECTING ITS THREADS, IS PROVIDED WITH COOPERATING THREADS AND A RAISED THIN ANNULAR SURFACE ON A BEVELED SURFACE OF THE CAP SO THAT THE ANNULAR SURFACE ENGAGES WITH A BEVELED SURFACE OF THE FITTING IN SEALING RELATIONSHIP.
Inventors
- 👤 Joseph Anthony Burke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:27
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/10; F16L55/11; F16L55/1108; B; B65; B65D; B65D59/00; B65D59/02; B65D59/06; F16L55/115; F16L55/1152; F16L57/00; F16L57/005; Y; Y10; Y10S; Y10S411/00; Y10S411/91
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |