Patent US3430645A successfully refreshed from Google Patents.
US3430645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duct support arrangement
Assignee: Combustion Engineering Inc
•
Filing: 1967-06-19
•
Granted: 1969-03-04
•
Expires: 1987-06-19
Abstract
No abstract record available.
Inventors
- 👤 Gunter J Stalph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:15
CPC Classifications
F; F16; F16L; F16L3/00; F16L3/16; F16L3/20; F16L3/205; F16L3/2053; F16L51/00; F16L51/02; F16L51/03; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6966
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) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |