Patent US3085549A successfully refreshed from Google Patents.
US2486387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hose
Assignee: AMERICAN VENTILATING HOSE Co
•
Filing: 1944-05-30
•
Granted: 1949-11-01
•
Expires: 1964-05-30
Abstract
No abstract record available.
Inventors
- 👤 Richard G Bringolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:21
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/24
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US164946A
Cited
US470738A
Cited
US746630A
Cited
US1594612A
Cited
US2106018A
Cited
US1974285A
Cited
US2176762A
Cited
US2340794A
Cited
US2366087A
Cited
US2337373A
Cited
US2337374A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-31 | 1953-05-02 | 1953-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-31 | 1957-05-02 | 1957-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-31 | 1961-05-02 | 1961-11-01 | $7700.00 | Window Closed / Lapsed |