Patent US5085320A successfully refreshed from Google Patents.
Patent US3055417A successfully refreshed from Google Patents.
US3055417A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for controlling flow of gases
Assignee: Zinklahoma Inc
•
Filing: 1959-03-20
•
Granted: 1962-09-25
•
Expires: 1979-03-20
Abstract
No abstract record available.
Inventors
- 👤 Robert D Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:03
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/01; G05D7/0146; F; F23; F23G; F23G7/00; F23G7/06; F23G7/08; F23G7/085; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87571; Y10T137/87676
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) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |