Patent US2854258A successfully refreshed from Google Patents.
US2854258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-sealing coupling
Assignee: HARBISSON FISCHER Manufacturing Co
•
Filing: 1955-01-26
•
Granted: 1958-09-30
•
Expires: 1975-01-26
Abstract
No abstract record available.
Inventors
- 👤 Clyde D Hickey
- 👤 Jr James F Slough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:08
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/28; F16L37/30; F16L37/367; F16L37/24; F16L37/244; F16L37/252; F16L37/32; F16L37/35; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/87925; Y10T137/87941; Y10T137/87949; Y10T137/87957
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |